Merge pull request #32 from muesli/master

Added error handling for Facebook gets.
added mods to composer autoload and removed mod-requires.
Added a bunch of checks to avoid warnings, fixed broken imports with my settings (g+ and moves mods).
Changed the moves post_meta structure and how its created. We use the activity as key-prefix and simply iterate over all other data-keys to get all data.
Merge pull request #33 from nonsenz/fixes

Some Fixes and change of moves meta_structure
Merge pull request #35 from muesli/master

Added (experimental) GitHub mod.
Merge pull request #37 from muesli/master

Fixed github update checks.
Merge pull request #38 from muesli/master

Added reclaim-log.txt to .gitignore.
removed existing OpenGraph class in mod.class.php and added different lib via composer. tested it and it worked.
bookmarks now have a link to source in the content
added correct class and a rel to link source
corrected class name and added rel to link source
corrected class name and added rel to link source
added to link source

… and got rid of „ich habe ein instagram hochgeladen“
small corrctions
added a check to prevent invalid argument errors
use wordpress native file_get_contents()
basic foursquare checkin mod