Fix compiler warning (Generics/Serialization/Unused vars) and Organize Imports
Some clean up for performance and code practices (correctness etc) -- FindBugs
Merge branch 'master' into bhaskar_minor_changes

Conflicts:
	src/main/java/App.java
	src/main/java/com/tumblr/jumblr/types/Post.java
	src/test/java/com/tumblr/jumblr/MockResponseWrapper.java
Added source_title back