Log Message:
Update to contao34 to 3.4.2.

Version 3.4.2 (2015-01-22)
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### Fixed
Fix an infinite recursion problem in the `FilesModel` class (see #7588).

Version 3.4.1 (2015-01-22)
--------------------------

### Fixed
Fix the position of the input field hints (see #7561).

### Fixed
Do not apply the GDlib maximum dimensions to SVG images (see #7435).

### Fixed
Do not show the diff icon if a record has been deleted (see #7429).

### Fixed
Remove a left-over headline from the `ce_text.xhtml` template (see #7502).

### Fixed
Preserve comments when exporting CSS files (see #7482).

### Fixed
Fix the LESS import path in the Combiner (see #7533).

### Fixed
Hide the width and height attributes if there is a sizes attribute (see #7500).

### Fixed
Remove the hardcoded figcaption width (see #7549).

### Fixed
Only load the model in the file/page picker if the class exists (see #7490).

### Fixed
Romanize style sheet names (see #7526).

### Fixed
Add the username to the "account has been locked" log entry (see #7551).

### Fixed
Consider the suhosin.memory_limit when raising the PHP limits (see #7035).

### Fixed
Added two missing `exclude` flags in the `tl_page` data container (see #7522).

### Fixed
Send an UTF-8 charset header in the `die_nicely()` function (see #7519).

### Fixed
Correctly validate dates in the `Widget` class (see #7498).

### Fixed
Back port the fixes from #7475 and #7473.

### Fixed
Send the same cache headers for cached and uncached pages (see #7455).

### Fixed
Fix the `current() expects parameter 1 to be array` issue (see #6739).

### Fixed
Correctly replace the `*_teaser` insert tags (see #7488).

### Fixed
Adjust the last and previous login labels (see #7426).

### Fixed
Unset the `postUnsafeRaw` cache in `Input::setPost()` (see #7481).