NTRanking, NTUser , Categories JSON
Merge branch 'master' of https://github.com/rafagonc/Noticias

Conflicts:
	Noticias.xcodeproj/project.pbxproj
	Noticias.xcodeproj/project.xcworkspace/xcshareddata/Noticias.xccheckout
Rank Done, Nav Bar Label and Picture
Bug Commit
NTCategory Protocol
Merge branch 'master' of https://github.com/rafagonc/Noticias

Conflicts:
	Noticias.xcodeproj/project.xcworkspace/xcshareddata/Noticias.xccheckout