Merge pull request #4 from 1951FDG/master

Fix login framework not found!

The runModal cannot be within this method, it blocks further operation and would show the alert multiple times, moved it to a beter place, with some improvements to turn bluetooth on,if turned off, using a private method

Fix potential memory leaks

Move code where it belongs, bugfix

Move checkKeyChainAccess method (used only once) inline and fixed issues with unlock sometime keystroking (null), proper types, proper NSString method used for creating password string

Added a minimum sleep of 3 to prevent user from unlocking too fast which would leave the screen off but unlocked, appearing to be locked which it is not

Replacement for lock script (sleep is not the same as lock screen) which works up till 10.13 (alternative non-private method also provided that works up till 10.12)

Move unlock script inline and improve script by combining two tell statements into one

Use proper method to make input field first responder

Fix spelling mistake

Bring app to front before showing content on screen

Update comment

Fix compiler warnings

Support cocoapods (1.3.1)