[BUGFIX] IMAGE content object accepts directories

Adds checks for file existence to avoid returning directory
paths instead of path to file.

Resolves: #51781
Releases: master, 6.2
Change-Id: I8f879f38b95e6d9562a8883d35664550d8fa8774
Reviewed-on: http://review.typo3.org/25286
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Stefan Neufeind <typo3.neufeind@speedpartner.de>
Reviewed-by: Markus Klein <klein.t3@reelworx.at>
Tested-by: Markus Klein <klein.t3@reelworx.at>
[TASK] Use Bootstrap 3.3.x in t3skin

Use twbs Bootstrap 3.3 release for t3skin.
Notes: https://github.com/twbs/bootstrap/releases/tag/v3.3.0

Resolves: #62573
Releases: master
Change-Id: I4138bbf154d091e30155998c4e52c79c41967dc1
Reviewed-on: http://review.typo3.org/33640
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Markus Klein <klein.t3@reelworx.at>
Tested-by: Markus Klein <klein.t3@reelworx.at>
[TASK] Add unit test for short data type support in ReflectionService

Resolves: #62547
Releases: master
Change-Id: Idada794755d8e40f702d0d9ada5a8b8b5719bf4c
Reviewed-on: http://review.typo3.org/33616
Reviewed-by: Oliver Klee <typo3-coding@oliverklee.de>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>
Reviewed-by: Markus Klein <klein.t3@reelworx.at>
Tested-by: Markus Klein <klein.t3@reelworx.at>
[BUGFIX] Fix column layout for New Content Element wizard

If adding new content elements in Web>List with the CE wizard,
you get the old column layout & titles even if you have a complete
backend_layout working.

But for Moving Elements the Backend Layout is already correct.
Column titles are already in $tcaItems a few lines before
the lines in the patch for File PagePositionMap.php. Using this
values the backend_layout is correct in Web>List CE Wizard.

Resolves: #42457
Releases: master, 6.2
Change-Id: I5f57aeac493ec5db02aaa92bd9eab97390cdb967
Reviewed-on: http://review.typo3.org/16837
Tested-by: Stefan Froemken <froemken@gmail.com>
Reviewed-by: Markus Klein <klein.t3@reelworx.at>
Tested-by: Markus Klein <klein.t3@reelworx.at>
Reviewed-by: Wouter Wolters <typo3@wouterwolters.nl>
Tested-by: Wouter Wolters <typo3@wouterwolters.nl>