Merge branch 'hotfix/443fix'
Removing submodules and migrating to nuget packages.
Remove Sharplonger.
Remove Ocell.Pictures
Adapt ReadLater
Remove TS.PCL
Transform Ocell.ReadLater to PCL.
Tests for ReadLater
Use Nuget packages
Adapted OAuth flows.
Compiling.
Package update.
Minor corrections.
Corrections in logger.
Serialization issues solved.
Logging for scheduled agent.
refactored from old threading constructs to Task
Merge pull request #28 from semihokur/master

refactored from old threading constructs to Task
Merge remote-tracking branch 'origin/master' into feature/no-hammock

Conflicts:
	Ocell.Library/Ocell.Library/Twitter/TweetLoader.cs
Remove LightTwitterService.