Changes in api

- Api functions can define an HTTP method to use to call them. "405 Method Not Allowed" is returned on error
- Api function that modify data accepts only POST as method.
- A list of HTTP return code related exception is added
- Api functions throw HTTP exceptions instead of return false or die()
- api_call() catches HTTP exceptions and return error message with corret HTTP response code
- api_format_items() returns also item activities count (# of like/dislike etc)
- api/friendica/photos/list return more info about photos. xml format added.
- api/friendica/photo/detail return more info, links to all sizes, no data except if 'size' parameter is passed. xml format added.
- new api api/friendica/activity/<verb> and api/friendica/activity/un<verb> to add or remove like/dislike/attend status

view/templates/api_photo_detail_xml.tpl

@@ -0,0 +1,21 @@
+
+<photo>
+	<id>{{$photo.id}}</id>
+	<created>{{$photo.created}}</created>
+	<edited>{{$photo.edited}}</edited>
+	<title>{{$photo.title}}</title>
+	<desc>{{$photo.desc}}</desc>
+	<album>{{$photo.album}}</album>
+	<filename>{{$photo.filename}}</filename>
+	<type>{{$photo.type}}</type>
+	<height>{{$photo.height}}</height>
+	<width>{{$photo.width}}</width>
+	<datasize>{{$photo.datasize}}</datasize>
+	<profile>1</profile>
+	<url>{{foreach $photo.link as $scale => $url}}
+		<link type="{{$photo.type}}" scale="{{$scale}}" href="{{$url}}" />
+	{{/foreach}}</url>
+	{{if $photo.data}}
+	<data encode="base64">{{$photo.data}}</data>
+	{{/if}}
+</photo>

view/templates/api_photos_list_xml.tpl

@@ -0,0 +1,5 @@
+
+<photos type="array">
+{{foreach $photos as $photo}}
+	<photo id="{{$photo.id}}" album="{{$photo.album}}" filename="{{$photo.filename}}" type="{{$photo.type}}">{{$photo.thumb}}</photo>
+{{/foreach}}</photos>

view/templates/api_timeline_xml.tpl

@@ -1,5 +1,7 @@
 
-<statuses type="array" xmlns:statusnet="http://status.net/schema/api/1/">
+<statuses type="array"
+	xmlns:statusnet="http://status.net/schema/api/1/"
+	xmlns:friendica="http://friendi.ca/schema/api/1/">
 {{foreach $statuses as $status}} <status>
   <text>{{$status.text}}</text>
   <truncated>{{$status.truncated}}</truncated>
@@ -17,5 +19,8 @@
   <coordinates>{{$status.coordinates}}</coordinates>
   <place>{{$status.place}}</place>
   <contributors>{{$status.contributors}}</contributors>
+  <friendica:activities>{{foreach $status.friendica_activities as $k=>$v}}
+    <friendica:{{$k}}>{{$v}}</friendica:{{$k}}>
+  {{/foreach}}</friendica:activities>
  </status>
 {{/foreach}}</statuses>