Fix some qdoc warnings.

Change-Id: I9bf747a184b17ccbb9acf23a368f8102c8f4df31
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
Doc: Edited main Qt Examples and Tutorials landing page.

-applied a three column style
-examples categorized with Qt Creator tutorials more prominent
-added information about where to find the examples

Task-number: QTBUG-33597
Change-Id: Ia23089aec8aa453890a80bbcf03e117e0fd3c955
Reviewed-by: Martin Smith <martin.smith@digia.com>
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
Update embedded linux docs with new variables

And additionally fix up some existing information a bit.

Change-Id: Ic2da148ca66b548efb6843035643ef5de8cc8f22
Reviewed-by: Topi Reiniö <topi.reinio@digia.com>
Doc: Enable IPC examples group

The documentation for IPC examples is built correctly - this
change re-enables the documentation group so that IPC examples
show up in 'All Qt Examples'.

Change-Id: Idbde226ee4dfa85b682df29429889e6cdfcaee27
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
Doc: Fix warning about deprecated \bold usage

  warning: '\bold' is deprecated. Use '\b'

Change-Id: If377a5ecba4488b8d4e368164c67bd0fb9dcbac1
Reviewed-by: Sze Howe Koh <szehowe.koh@gmail.com>
Reviewed-by: Jerome Pasion <jerome.pasion@digia.com>
Doc: Enabling cross-linking to the Enginio Manual.

Change-Id: Ifbbce3f4210c327e053ddc236250e5f7985b32bf
Reviewed-by: Sergio Ahumada <sahumada@blackberry.com>
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@digia.com>
Doc: Adding links to other C++ reference pages in "All Classes" page.

-should help visibility to those pages.

Change-Id: I6cfb6286483314268f6f2edd0cb835a4f54b9d74
Reviewed-by: Sergio Ahumada <sahumada@blackberry.com>
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@digia.com>
Merge remote-tracking branch 'origin/stable' into dev

Change-Id: Ide07969a4b03d4dc68b2e5269e9aeaa117a861ea