media manager: added a few newlines to the output

media manager: small functionality and css changes

media manager: styled new option buttons

media manager: more CSS changes

Fix mediamanager JS (diffs not yet working)

media manager: re-newed CSS roughly (more to come)

Update jQuery and jQuery UI versions

jQuery from 1.6.2 to 1.6.4
jQuery UI from 1.8.14 to 1.8.16

Rework media manager HTML (JS and CSS will come)

better resize handles in media manager

improved media options css (and removed lots of dead css code)

added styles for general tabs (to be used in mediamanager and other components)

added clearfix-similar class (.group) to core styles

improved core .a11y class

Increase compatibility in addEvent

Increase locktimer compatibility

Use jQuery UI Dialog for linkwiz

Readd variable declaration for plugin:sortablejs

Various JavaScript improvements, JSLint, jQuery

pt-BR language update

media manager design: added icon to resizing handle and changed background colour

media manager design: more spacing and some colour changes

media manager design: improved some spacing

media manager design: added headline

issue #61 security fix

Revert tmp commits

This reverts commit ba6c070edd92ca0fc8a6ee85d51769d64a19ee7c.
This reverts commit 923510088dda99cb2790b15308593e47369d4f01.