Finish language update

Dutch language update

Czech language update

do not intialize media manager JS if not needed FS#2578

replace deprecated split calls FS#2583

more $INPUT use FS#2577

allow selects in block forms

correctly check if subscriptions are enabled

more subscription refactoring BROKEN

now the actual sending of bulk messages (digest, list) is reimplemented
and partially tested.

Still not complete

do not recompress already minified js FS#2574

html validity fixes (removed name and align in some plugins)

added some missing spaces (to popularity and revert plugins)

fixed objects not showing properly (FS#2572)

fixed some RTL+IE7 bugs, mainly background icons and search form (FS#2569)

added link icons back into RTL styles for old default template (FS#2524)

improved toolbar appearing to load slowly

fixed icons in buttons not showing in IE8 and below (FS#2568)

fixed some RTL issues in mediamanager (FS#2433 and others)

remove min-height after toggling FS#2555

fix E_STRICT errors FS#2427

This commit fixes all E_STRICT messages shown when running the test
suite. There might be more problems not covered by tests, yet.

For compatibility reasons with plugins

fix E_STRICT errors FS#2427

This commit fixes all E_STRICT messages shown when running the test
suite. There might be more problems not covered by tests, yet.

For compatibility reasons with plugins, E_STRICT errors are still
supressed.

show more ...

added missing phpdoc header to included template files

removed contradicting comment in template files and made when the doctype is inserted consitent

Initialize more variables and test if others are set (no functional changes)

Fix inconsistent return values in the indexer and in getInfo()

Fixed and extended PHPDoc comments and added additional @var comments