XWIKI-9808: When renaming an extension with xwiki.extension.feature, the UI does not present the new version as an upgrade
* Bulletproofing
XWIKI-9956: When a subwiki is empty, the administration should suggest the good UI to install.
XWIKI-9823: The title of the Profile page is "Profile of" if the user didn't fill in his First and Last Name.
XWIKI-9940: History button shows "Hide minor edits" even if "showminor=false".
XWIKI-9926: Problem displaying pretty name of authors or creators in a subwiki livetable

 * use getUserName instead of getLocalUserName
   throughout the livetable macros
Merge branch 'master' of https://github.com/xwiki/xwiki-platform
[Misc] Adding a note to explain why we don't apply transformations to compute the rendered title
XWIKI-9958: XWiki.XWikiComments page is created as guest in a subwiki
[Misc] Small javadoc improvements
XWIKI-9955: Improve messages in the Report step when no pages were modified in the DW
XWIKI-8680: Upgrade Ruby macro to use JRuby 1.7.10
XWIKI-9965: Mark ExtensionCode.ExtensionProxyClass as hidden
XWIKI-9966: Bad display of 'Authors' column on Extension.WebHome livetable
XWIKI-9969: Upgrade to JGroups 3.4.2
Merge branch 'master' into feature-standardnewline
XWIKI-1543: line endings for content in exported XML are inconsistent
* better pattern