Allow to set the activeField to nil.

This is with the purpose of the user having an easy reference of which
textField is selected.
Fix typo.
update podspec for v2.1 to get all new updates
Merge pull request #19 from pablasso/master

Allow to set the activeField to nil.
Merge pull request #27 from ferbass/master

update podspec for v2.1 to get all new updates
Fix setBarStyle issue #24
Merge pull request #31 from azu/fix_setBarStyle

Fix setBarStyle issue
Add iOS 7 arrows to replace iOS 6 prev/next
Merge pull request #32 from stevemoser/master

Add iOS 7 arrows to replace iOS 6 prev/next
Merge branch 'master' of https://github.com/simonbs/BSKeyboardControls

Conflicts:
	BSKeyboardControls/BSKeyboardControls.m