Fix EZP-19904: Admin interface redirection to raw treemenu JSON output

This is a folloup fix to #484 which was merged in 80c299f.
Implement EZP-21323: Add instructions / link to older webin/flow/plain packages in setup wizard
Merge pull request #711 from ezsystems/EZP-21323

Implement EZP-21323: Add link to older packages in setup wizard
Fix EZP-21410: object name limit does not support multibyte charset

Trimming has been changed to use a preg_replace as found here:
http://stackoverflow.com/questions/4166896/trim-unicode-whitespace-in-php-5-2
Merge pull request #715 from ezsystems/EZP-21410

Fix EZP-21410: object name limit does not support multibyte charset
EZP-21408: Use composer autoloads for ezc, if available

No need for an own config for Travic CI anymore
Merge pull request #712 from jeromegamez/EZP-21408_ezpgenerateautoloads

EZP-21408: Add composer autoloads in ezpgenerateautoloads.php in pure legacy context
Merge pull request #716 from ezsystems/EZP-19904

Fix EZP-19904: Admin interface redirection to raw treemenu JSON output
Fix EZP-20880: Cache not cleared on role edits
Updated Travis CI status image to point to the correct project
Merge pull request #719 from ezsystems/EZP-20880_missing_cache_clear_event

Fix EZP-20880: Cache not cleared on role edits
Merge pull request #720 from jeromegamez/travis_status

Updated Travis CI status image to point to the correct project
Fixed EZP-21400: Discard draft, removes image file
Fixed CS in ezimagefile.php
Fix EZP-21038: Treemenu breaks with non latin char
Since b768d2f22bae527eaa659d16fba84c3e63507e5c, treemenu is broken
because htmlentities() needs to know the charset used, especially when
it is not UTF-8 (PHP 5.4) or ISO-8859-1 (PHP 5.3).
Also use mb_strlen() instead of strlen(), and specify the charset in the
Content-Type HTTP header.
Fix EZP-21411: eZOracle: Link management doesn't show Objects using URL

ezcontentobject_attribute column contentobject_attribute_version
is named contentobject_attr_version in oracle.
eZURLObjectLink->definition updated accordingly
Fixed EZP-20933: unexpected substractive policies

This commit makes sure that content/create with a
Class( Any ) policy have higher priority than Class( specific class )
Fix EZP-21443: Debug log displayed when using long japaneese strings in name