Add Qt 5.2.1 changelog

Change-Id: I0390aa8ff05270a8b6fe63e729b3f45dcc05275e
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Updated the list of examples tagged for Android

Tested the examples that are tagged for
user experience and relevance for mobile devices, and
updated the list accordingly.

Task-number: QTBUG-34805
Change-Id: I1ccd23fa626deb42c0fea4e03a2bf7a8dd2a856c
Reviewed-by: Eskil Abrahamsen Blomfeldt <eskil.abrahamsen-blomfeldt@digia.com>
move qprocess changelog entry to windows section

Change-Id: I0b0475ddd72491cf7b2cef304c434d2311640b84
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
add buildsystem changelog

Change-Id: I84ad3008b7c8431e0874e51b0cdfb677b7ffcb8a
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
Doc: Added more information about the WriteOnly mode

Task-number: QTBUG-34336

Change-Id: I4a9995dde400145cb1e33e625715eea8aaed3191
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
Doc: Remove section on how build the MySQL driver for MinGW users

The section is clearly outdated. It references MinGW from mingw.org, which
we don't support anymore. With a more modern MinGW you can just use the
recipe to link against the prebuilt binaries the same way we do describe
for MSVC.

Task-number: QTBUG-17268
Change-Id: I15b96fd328605b60d1494a703b9005e2c16aea39
Reviewed-by: Venugopal Shivashankar <venugopal.shivashankar@digia.com>
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
X11: build again on Linux distros that don't have XInput 2.2

fixed1616ToReal is needed by the XI2 tablet event debugging added in
ecf11d62fc6f57cccf6f3326e768b1c7cabbd0b3, so it needs to be available
if tablet events are supported and XI 2.2 events are not (older Linux
distros).

Change-Id: Id763d585790a9f037abc408dfba4ab5eec6dd421
Task-number: QTBUG-36437
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
Reviewed-by: Wolfgang Bremer <wbremer@blackberry.com>
qdoc: Never use a collision page as a main QCH landing page

When writing the main/landing page for a documentation set to
a .qhp file, check that it's not a collision page. If it is,
default to 'index.html' instead.

Task-number: QTCREATORBUG-11035
Change-Id: I0269834f6e50fcf5ae779c026263e69e4c3cd7b6
Reviewed-by: Martin Smith <martin.smith@digia.com>