Some fixes from the platform
Added ability to add sprintf variables to JText string

[writing it up now...]
Merge remote-tracking branch 'remotes/upstream/master' into patch-9
Reverting [#30430] Severe bug with "com_content" component routing.
 # [#30416] duplicate alias in banner manager on pressing save as copy
[#30453] Tags: Pagination not working when linking to a tag.
[#30486] *Banners Manager:Banners and Banners Manager:Clients Status
filter issue. Thanks Jean-Marie Simonet.
[#30480] com_contact error in admin->view->contacts search
"author:xxxx". Thanks Brent Cordis.
[#30481] Missing space between icon-cog and caret in featured view.
Thanks Thomas Hunziker.
[#30250] Upgrade jQuery from 1.8.1 to 1.8.3. Thanks George Wilson.
[#30046] Update SQLSRV with platform fixes. Thanks David Hurley.
Fix failing system test.
 # [#30226] *TAGS: Getting rid of all aspects concerning lang
associations
[#30502] Replace use of JRequest in com_media
[#30489] *Regression: Menu Type UTF8 Alias prevents display in Menu Items Manager in J3
[#30499] Duplicate btn class in login module button (Fix #963)
[#30041] Use of '/' not being handled well on Windows Servers
[#30054] Catchable fatal error: Object of class stdClass could not be converted to string in /plugins/system/debug/debug.php on line 303
 $ Adding installation language pt-PT
 # [#30503] *Tags :can't save Compact Layout in Tags Component Options