Added local system variables exports file to gitignore.
Back button now also works correctly in downloads screen
Cleaned up some code and made the navigation drawer items orange
Merge pull request #70 from wtud/downloadsBackButton

Return to home when pressing back in DownloadFragment
Merge branch 'master' of github.com:wtud/tsap
Merge branch 'orangeGUI'

Conflicts:
	tsap/src/org/tribler/tsap/MainActivity.java
Channels fragment is now disabled
Merge pull request #65 from wtud/disableChannels

Disable channels in GUI
Environment variable for downloads directory is now set
Merge pull request #71 from wtud/downloadDirectory

Change download directory to Downloads
Fixed VideoInfoFragmentTest
Merge branch 'master' of github.com:wtud/tsap
Set Download, torrent en swift dir from the ANDROID_DOWNLOAD_DIRECTORY env variable
Merge pull request #73 from wtud/tribler-dldir

Set download dir to sdcard
Changed default thumbnail
Merge pull request #75 from wtud/defaultThumbnail

Change default thumbnail
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