Added podpec.
Added viewDidLoad initialization, enabling storyboard usage.
Removing old buttons, preventing memory loss.
If content's width is smaller than the view's width, put it in the center.
Updated podspec version
Updated podspec version
Enabled setting the initial selected button index.
Enable setting underline indicator offset.
Enable setting button edge insets.
Handle no tabs state.
Merge pull request #1 from margarina/master

Changes from margarina/tadejr