fix static analyzer issue, use latest DTModelStorage
bump podspec to 2.2.1
add social_media_url parameter
update project version to Xcode 5.1, fix unit tests memory leaks
simplify target names
simplify target names, fix 64 bit warnings
prepare for 2.2.2 release
fix tests target name in podfile
remove old pods library
prepare for 2.2.3 release
add properties to customize header and footer presentation if section is empty.
prepare for next release
remove unused protocol
replace old docs with new ones.
use UTF-8 encoding for Travis CI terminal
Add basic workflow
switch to cell class string representation for cell reuse identifiers. Same with headers and footers
Update read me for 2.4.0 release
Update README.md
prepare for next release