friendly error messages

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@4017 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
friendly error messages

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@4018 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
Imagick adapter: COLORSPACE_GRAY bugfix (conversion RGB)

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@4019 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
cache cleanup in maintenance

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@4020 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
disable automatic cache cleaning: automatic_cleaning_factor

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@4021 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
disable automatic cache cleaning: automatic_cleaning_factor

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@4022 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
robohash images license update

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@4023 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
better user avatar fallback (random)

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@4024 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
dashboard menu style in toolbar

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@4025 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
Pimcore_Tool_Session: set directive use_trans_sid to false, to avoid problems with the content

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@4026 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
!$x is not the same as is_null($x)

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@4027 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
allow pimcore_site registry setting in custom startup

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@4028 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
revert: allow pimcore_site registry setting in custom startup

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@4029 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
allow pimcore_site registry setting in custom startup

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@4030 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
cache improvements (mysql-table & memcache)

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@4031 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
fix

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@4032 1f8fe7d8-47f0-464c-8d0a-336f4953ab05
build auto version (2999) ...

git-svn-id: http://www.pimcore.org/svn/pimcore/private/core/trunk@4033 1f8fe7d8-47f0-464c-8d0a-336f4953ab05