[#27737] Clean up the unit tests (Rouven Weßling)
[#28643] Backport JApplicationBase and some minor fixes from the platform.
File missing in last commit #28643
 $ Updating installation ini file zh-CN
Prepare for 2.5.5 release
Don't hard-code the Git binary path
Prepare for 2.5.5 release
Disable install checks for development
Update trunk to version 2.5.6 to prepare for next release
Test for SQL error security issue
Update phpunit.php for debugging system tests
Add update xml files to build folder
Update files for 2.5.5
Update changelog files
[#28554] Mark JXMLElement as deprecated and don't use it in type hinting
[#28650] Use legacy aliases for the MVC in the site
 # [#28685] Edit article Button missing after upgrade to the latest
version 2.5.5 from 2.5.4. Thanks Mark
 $ [#28695] *Lang string missing
 # [#28694] *Delete toolbar broken in com_media in 2.5.5
 # [#28702] 404 Hits of com_redirect fails after Manual update. Thanks
Mark