#1 Navigation extension throws error when hiding keyboard

When hidding the keyboard a new call is made to checkKeys with an undefined key. That's the way to detect the keyboard is or has been hidden
Grrr, fixed indent error
#1 Navigation extension throws error when hiding keyboard

Updated as requested by original coder Rob G
encoded brackets inside pre tags
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colon is now an accepted key. Fixes #197
autocomplete now works with newer versions of jQuery UI. Fixes #177
give user feedback on touchstart. Attempt to fix #179.
prevent double event repeats. Fixes #184
Add enter to allowed keys in textareas. Fixes #190.
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update version
Merge branch 'master' of https://github.com/Mottie/Keyboard