removing ios 5-6 theme
removed old ShareKit
project reorganize: use imageassets, models

Models: source moved to it's directory
Image: all images migrated to imageassets.
removed theme, added helper class for theming and coloring
added back launch images
theming and color changes

Added separate ISTheme class with colors and fonts.
Removed old tint and button colors
removed unused project PSUpdateApp
SatusBar style white
localization strings: fixed "no data" label
helper: removed unneccesary fixios7 methods
changed tableview header styling
storyboards: change deployment target to project settings
storyboards: removed language specific storyboards
iswebview - fixed colors and buttons
helper: fixed bug with seminar header resize, removied orphan ios7 fix methods
Localization: added agenda strings
SeminarView: fixed recalculation, removed unused code, added "agenda" localiztion text, fixed tableview section header styling
moved styling from Helper to ISTheme class
localization: changed labels
Setting tabbar items titles for localization when first view loaded