In some languages it's conventional not to insert a thousands
separator in numbers that are four digits long (1000-9999).
Rather than copy-paste the custom code to do this between 13 files,
introduce another option and have the base Language class handle it.
This also fixes an issue in several languages where this logic
previously would not work for negative or fractional numbers.
To implement this, a new option is added to MessagesXx.php files,
`$minimumGroupingDigits = 2;`, with the meaning as defined in
<http://unicode.org/reports/tr35/tr35-numbers.html>. It is a little
roundabout, but it could allow us to migrate the number formatting
(currently all custom code) to some generic library easily.
Bug: T177846
Change-Id: Iedd8de5648cf2de1c94044918626de2f96365d48
Remove empty line comments as found by the
MediaWiki.WhiteSpace.SpaceBeforeSingleLineComment.EmptyComment sniff
Change-Id: I5d694f7a7d3bc97e16300ba03c60ad17f3c912a5
Swapped some "$var type" to "type $var" or added missing types
before the $var. Changed some other types to match the more common
spelling. Makes beginning of some text in captial.
Change-Id: I7a4dec6a8de96ee21ef34e52bb755f723aa3b0e6
Doxygen documentation update:
* Changed alls @addtogroup to @ingroup. @addtogroup adds the comment to the group description, but doesn't add the file, class, function, ... to the group like @ingroup does. See for example http://svn.wikimedia.org/doc/group__SpecialPage.html where it's impossible to see related files, classes, ... that should belong to that group.
* Added @file to file description, it seems that it should be explicitely decalred for file descriptions, otherwise doxygen will think that the comment document the first class, variabled, function, ... that is in that file.
* Removed some empty comments
* Removed some ?>
Added following groups:
* ExternalStorage
* JobQueue
* MaintenanceLanguage
One more thing: there are still a lot of warnings when generating the doc.
