[JIRA: DOI-240] - Organize resources to 'Asset Catalog'. Added app acons and launch images.
Updated project setting to support iOS 7 only.
Updated MBProgressHUD library.
[JIRA: DOI-243] Redesign 'Login screen. Login method choice was redesigned.
Redesigned 'Login' screen.
Added category to create 1px image from specified color.
Moved UI styling code to the Theme pattern.