- reset videoHolder dimensions and position to display properly when user publish,stop, then publish webcam

Slight refactoring of getJoinURLwithDynamicConfigXML() to make consistent with other functions in bbb_api.jsp

 - fixed problem where senders message gets displayed on all tabs in his private chat message window

Hotkey cleanup

private chat tabs now adjust to the current font size when opened

Commented out the Focus Colour Picker line from Shortcut Help Window, since the Colour Picker component has been removed.

Commented out the Undo Whiteboard Mark line from Shortcut Help Window, since it is currently inactive.

Better hotkey modifiers

Improved the global/local logic by eliminating loadGlobalKeys() and merging the functionality into loadKeys(). Also made a shortcut function string more clear.

added tooltip to help link

Added separation between global hotkeys and local-to-module hotkeys. Also changed hotkey modifiers to more favourable combinations.

user list alpha sorting is now ascending instead of descending