Update el-GR.ini

Small typo on page title, in Greek language Installation
Adding install.xml to en-GB folders
 # [#32237] Different Display at the edit views  Thanks Tobias Zulauf
(Fix #2205)
 # [#31097] module chrome for html5 contains incomplete class
declaration.  Thanks Troy Hall
(Fix #2077)
 # [#32416] Color field gives php errors when using control="simple"
Thanks Peter van Wetsen
(Fix #2331)
 # [#32291] Position field in Hathor module manager "select position" is
in wrong place Thanks Ashan Fernando
(Fix #2057)
 # [#32448] Missing 'btn-group-yesno' class for yes/no buttons in plg :
editors / codemirror  Thanks Marc-Antoine Thevenet
(Fix #2536)
 # [#32445] Wrong class for ‘yes/no’ button in plg : User - Joomla!
Thanks Marc-Antoine Thevenet
(Fix #2353)
Merge pull request #2371 from infograf768/installxml

Adding install.xml to en-GB folders
Remove com_services language files in administrator/
Modify description for Site-Offline in front-end
 $ [#32470] Incomplete value of a key in en-GB.com_templates.ini admin
language file  Thanks Jozsef Tamas Herczeg
(Fix #2372)
Merge pull request #2376 from Buddhima/fixes_for_com_config

Remove unnecessary language files
2 ini files deleted = chnage in install.xml
small change in string
Update the Framework DI Container to the latest version. No BC breaks.
Merge pull request #2377 from dongilbert/UpdateDICode

Update the Framework DI Container to the latest version. No BC breaks.
Fix weblink and newsfeed edit for markup changes.
[#32421] Installation 3.2.b2 fails on PostgreSQL (Fix #2369)
[#31604] Invalid column name 'RowNumber' from articles model with MS SQL Server (Fix #1744)