[TASK] Base backend login on Twitter Bootstrap

* Change HTML & CSS by using twb
* Cleanup the Controller, e.g remove backend_old setting

Gorgeous brand new login screen for TYPO3 backend.

Resolves: #62180
Releases: master
Change-Id: Idc56f14a22e98d95f49cb73223732f2b17b98fab
Reviewed-on: http://review.typo3.org/33278
Reviewed-by: Felix Kopp <felix-source@phorax.com>
Tested-by: Felix Kopp <felix-source@phorax.com>
Reviewed-by: Ingo Pfennigstorf <i.pfennigstorf@gmail.com>
Tested-by: Ingo Pfennigstorf <i.pfennigstorf@gmail.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Frank Nägler <typo3@naegler.net>
Tested-by: Frank Nägler <typo3@naegler.net>
[BUGFIX] RTE: Remove cut, copy and paste buttons in Firefox

Support for allowClipboard policy has been dropped by Firefox 29.
Therefore, remove cut, copy and paste buttons from the RTE toolbar
in Firefox. Remove also dialogue for installing AllowClipboard Helper
Firefox Addon.

Releases: master, 6.2
Resolves: #62296
Change-Id: I772b07cdca148c60ef8f61097f96fe5872fc0309
Reviewed-on: http://review.typo3.org/33367
Reviewed-by: Stanislas Rolland <typo3@sjbr.ca>
Tested-by: Stanislas Rolland <typo3@sjbr.ca>
[BUGFIX] Visual regressions and unifications in Backend

Unifies tables in documentation, web>info page info + language,
scheduler edit and typoscript object browser.

Also due to the introduction of Bootstrap and refactoring of
t3skin/CSS several views broke. Fixes these.

Removes the FontAwesome save button for now.

Resolves: #62275
Releases: master
Change-Id: I545a24a4664b0f56b2b1d8a4a24aa312b0cc4ded
Reviewed-on: http://review.typo3.org/33341
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
[BUGFIX] RTE: Edit element dialogue may raise JavaScript error

When clicking ok, some tabs may have not been rendered. Check for
presence of elements and values.

Releases: master, 6.2
Resolves: #62314
Change-Id: I928ac7ce8bebe2539f49e2153b4f7f8f2f7c889b
Reviewed-on: http://review.typo3.org/33373
Reviewed-by: Stanislas Rolland <typo3@sjbr.ca>
Tested-by: Stanislas Rolland <typo3@sjbr.ca>
[FEATURE] RTE: remove deprecated JavaScript methods

Some JavaScript methods are deprecated since TYPO3 4.7.

Releases: master
Resolves: #62291
Change-Id: Ie427dc8e898233723650ebdd587e9625b8ea4419
Reviewed-on: http://review.typo3.org/33344
Reviewed-by: Stanislas Rolland <typo3@sjbr.ca>
Tested-by: Stanislas Rolland <typo3@sjbr.ca>
[TASK] Use a new icon for sys_action toolbar

The sysaction icon in the toolbar must also be changed to an icon
of font awesome.

Resolves: #62315
Releases: master
Change-Id: I8fe101948affaaa1e98778784572775d5380b6cc
Reviewed-on: http://review.typo3.org/33372
Reviewed-by: Kay Strobach <typo3@kay-strobach.de>
Tested-by: Kay Strobach <typo3@kay-strobach.de>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>
[BUGFIX] RTE: Insert Tag dialogue may raise security error in Firefox

Problem: If a style sheet from another domain is imported by the style
sheet configured for the RTE, a security error is raised by Firefox
when opening the Insert tag dialogue window.
Solution: Catch the error and report it on the console.

Releases: master, 6.2
Resolves: #62316
Change-Id: I093416abbc784f7548cda3b6c9be1d4b7d484040
Reviewed-on: http://review.typo3.org/33375
Reviewed-by: Stanislas Rolland <typo3@sjbr.ca>
Tested-by: Stanislas Rolland <typo3@sjbr.ca>