Update aliases

Add alias for Allan and update Rohan's account to point to the active one.

Change-Id: I72bb56e304ec0a87ecb050a0255541f7da532a54
Reviewed-by: Allan Sandfeld Jensen <allan.jensen@digia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
qt5_tool: fix for perl v5.8.8

The perl version which comes with msysgit is v5.8.8. There, the
script fails with

   Undefined subroutine &Cwd::realpath called at
       qtrepotools/bin/qt5_tool line 600.

In this perl version Cwd's realpath apparently needs to be
explicitly exported.

Change-Id: I467c5879e3b67e14652054fc9df1ce9fd547aa14
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
git-qt-merge-mainlines: Add qtwebsockets to the default list

Change-Id: I118f57de2210bf361ec24d8fb32ca18f753a4c59
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@digia.com>