Replace applicable types of 'number' to 'integer'

`number` implies/represents a float where `integer` does not.

The only remaining `type: number` in the project appear on power levels: those have been left untouched pending clarification.

Fixes https://github.com/matrix-org/matrix-doc/issues/746

api/client-server/admin.yaml

@@ -105,7 +105,8 @@ paths:
                                   type: string
                                   description: Most recently seen IP address of the session.
                                 last_seen:
-                                  type: number
+                                  type: integer
+                                  format: int64
                                   description: Unix timestamp that the session was last active.
                                 user_agent:
                                   type: string

api/client-server/content-repo.yaml

@@ -259,7 +259,8 @@ paths:
           description: "The URL to get a preview of"
           required: true
         - in: query
-          type: number
+          type: integer
+          format: int64
           x-example: 1510610716656
           name: ts
           description: |-
@@ -276,7 +277,8 @@ paths:
             type: object
             properties:
               "matrix:image:size":
-                type: number
+                type: integer
+                format: int64
                 description: |-
                   The byte-size of the image. Omitted if there is no image attached.
               "og:image":
@@ -324,7 +326,8 @@ paths:
             type: object
             properties:
               m.upload.size:
-                type: number
+                type: integer
+                format: int64
                 description: |- 
                   The maximum size an upload can be in bytes.
                   Clients SHOULD use this as a guide when uploading content.

api/client-server/definitions/public_rooms_response.yaml

@@ -45,7 +45,7 @@ properties:
           description: |-
             The name of the room, if any.
         num_joined_members:
-          type: number
+          type: integer
           description: |-
             The number of members joined to the room.
         room_id:
@@ -82,7 +82,7 @@ properties:
       absence of this token means there are no results before this
       batch, i.e. this is the first batch.
   total_room_count_estimate:
-    type: number
+    type: integer
     description: |-
         An estimate on the total number of public rooms, if the
         server has an estimate.

api/client-server/list_public_rooms.yaml

@@ -123,7 +123,7 @@ paths:
       parameters:
         - in: query
           name: limit
-          type: number
+          type: integer
           description: |-
             Limit the number of results returned.
         - in: query
@@ -173,7 +173,7 @@ paths:
             type: object
             properties:
               limit:
-                type: number
+                type: integer
                 description: |-
                   Limit the number of results returned.
               since:
@@ -233,7 +233,7 @@ paths:
                       description: |-
                         The name of the room, if any.
                     num_joined_members:
-                      type: number
+                      type: integer
                       description: |-
                         The number of members joined to the room.
                     room_id:
@@ -270,7 +270,7 @@ paths:
                   absence of this token means there are no results before this
                   batch, i.e. this is the first batch.
               total_room_count_estimate:
-                type: number
+                type: integer
                 description: |-
                    An estimate on the total number of public rooms, if the
                    server has an estimate.

api/client-server/notifications.yaml

@@ -45,7 +45,7 @@ paths:
           required: false
           x-example: "xxxxx"
         - in: query
-          type: number
+          type: integer
           name: limit
           description: Limit on the number of events to return in this request.
           required: false

api/client-server/registration.yaml

@@ -218,7 +218,7 @@ paths:
                 description: The email address
                 example: "example@example.com"
               send_attempt:
-                type: number
+                type: integer
                 description: Used to distinguish protocol level retries from requests to re-send the email.
                 example: 1
             required: ["client_secret", "email", "send_attempt"]
@@ -283,7 +283,7 @@ paths:
                 description: The phone number.
                 example: "example@example.com"
               send_attempt:
-                type: number
+                type: integer
                 description: Used to distinguish protocol level retries from requests to re-send the SMS message.
                 example: 1
             required: ["client_secret", "country", "phone_number", "send_attempt"]

api/client-server/search.yaml

@@ -179,7 +179,7 @@ paths:
                     description: Mapping of category name to search criteria.
                     properties:
                       count:
-                        type: number
+                        type: integer
                         description: An approximate count of the total number of results found.
                       highlights:
                         type: array
@@ -197,7 +197,7 @@ paths:
                           description: The result object.
                           properties:
                             rank:
-                              type: number
+                              type: integer
                               description: A number that describes how closely
                                 this result matches the search. Higher is
                                 closer.

api/client-server/users.yaml

@@ -47,7 +47,7 @@ paths:
                 description: The term to search for
                 example: "foo"
               limit:
-                type: number
+                type: integer
                 description: The maximum number of results to return (Defaults to 10).
                 example: 10
             required: ["search_term"]

event-schemas/schema/core-event-schema/room_event.yaml

@@ -16,7 +16,8 @@ properties:
   origin_server_ts:
     description: Timestamp in milliseconds on originating homeserver
       when this event was sent.
-    type: number
+    type: integer
+    format: int64
   unsigned:
     description: Contains optional extra information about the event.
     properties: