Remove reload on opt-out/opt-in

Needed to listen to change in JS because click was fired twice
OptBox: stopEvent and preventDefault to prevent reload page because of click

It's not neccessary to reload the page to disable/enable cookies
OptBox: only show box if defaultOptValue is out
OptBox: Use jQuery instead of ext.

Simplifies code, step forward to remove ext from frontend.
OptBox: Add feature to define if box should be shown if opt-in

This is needed because in some countries optBox needs to be shown even
if the defaultOptValue is 'in' to notify users there are cookies saved
by default.
OptBox: remove option for reload

This option is not really needed. If a web needs this feature it can
implement it via cookieOptChanged-jsevent.
Merge pull request #255 from Ben-Ho/3.7-opt-out

Fix OptBox
Merge remote-tracking branch 'github/3.7' into 3.7
fix imagick usage for older versions where setColorspace doesn't exist yet
Merge branch '3.4' into 3.5
Merge branch '3.5' into 3.6

Conflicts:
	Kwf/Media/Image.php
Merge branch '3.6' into 3.7
Merge branch '3.7' into 3.8

Conflicts:
	Kwc/Statistics/OptBox/Component.js
fix Image scale
Merge branch '3.4' into 3.5
Merge branch '3.5' into 3.6
Merge branch '3.6' into 3.7
Merge branch '3.7' into 3.8
add underscore, required by MobileMenu

mustache will be removed soon
update script for new user password hashing
the new hashing algo needs more chars