add icons to about and fixe pocho position

need to replace the facebook, google+, forum discuss and the link in the
about

fixed the position of pocho image on the disclaimer
fix the description pass behind the "Watch" button
Fix 'escape' issues after leaving about page
Show initModal when refreshing TV Shows db manually
Rebuild the initDB to download a ZIP with multiple file

Prevent flood in the memory by loading all the tvshow db in the memory.
We process all files 1 by 1 (about 1mb each)
Completing the initDB Process
Merge branch 'dev-0.3' of https://github.com/popcorn-official/popcorn-app into dev-0.3