I have errors after commit https://github.com/piwik/piwik/commit/6624e27e575d6056da7881bc05e9972c50ec1128:
At the previous commit (5d44202) everything is fine:
Have to stay on it (and do not apply new changes)...
--
UPD: after add line "disable_merged_assets = 1" in config.ini.php (in debug section) things work on last commit!))

At the previous commit (5d44202) everything is fine:

Have to stay on it (and do not apply new changes)...
--
# php -v PHP 5.5.6-1~dotdeb.1 (cli) (built: Nov 19 2013 01:21:59) Copyright (c) 1997-2013 The PHP Group Zend Engine v2.5.0, Copyright (c) 1998-2013 Zend Technologies with Zend OPcache v7.0.3-dev, Copyright (c) 1999-2013, by Zend Technologies
UPD: after add line "disable_merged_assets = 1" in config.ini.php (in debug section) things work on last commit!))