closes #163 - implements Server Side Events for status messages

but disabled in FE by default
code formatting
code refactoring
removes dead code
reduces min theme width
allow multiple markitup instances
adds php 5.5 to travis test environment
moves bookmarks JS from inline jQuery to backbone
fixes test case
updates to font-awesome 4
updated to marionette 1.2.2, backbone 1.1
adds opcache support for php 5.5
outline checkbox
fixes some html validation problems
[m] fixes overflowing links