Remove installation app from most checkstyle exceptions
 $ Updating Installation ini files: be-BY, da-DK, fr-FR, it-IT, mk-MK,
nb-NO, ru-RU, sr-RS, sr-YU, ta-IN, th-TH, zh-TW
Clear PMD errors in installation
[#29855] Add a component for creating and managing (nested) tagging in
content components. Thanks Elin!
Fix system tests for com_tags changes
Fix up language file, CHANGELOG for com_tags
[#29822] Show logs in debug console. Thanks Elijah Madden!
Remove Geshi plugin from Joomla
Merge pull request #746 from dextercowley/no-geshi

[#28574] Remove the GeSHi plug-in.
Add update sql file for tags tables
Remove FK constraint in tags tables in update script
Prepare for 3.1.0_beta1 release
Fix update to install tags extensions
Code style fixes
Take two on code style
 #$ [#30220] TAGS - language string typo. Thanks David. + some.
 #  [#30216] *Normalising batch for com_users manager in Isis
autoloadLanguage property - so that we need not override the constructor just to load language.
Wrong copyright