Add support for disabling exceptions with ICC

Change-Id: Id1ea1bda14a20e44af1eb9f53bae877a3b9fd2e4
Reviewed-by: Olivier Goffart <ogoffart@woboq.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Allow non-character codes in utf8 strings

Changed the processing of non-character code handling in the UTF8 codec.
Non-character codes are now accepted in QStrings, QUrls and QJson strings.
Unit tests were adapted accordingly.
For more info about non-character codes,
see: http://www.unicode.org/versions/corrigendum9.html

[ChangeLog][QtCore][QUtf8]
UTF-8 now accepts non-character unicode points; these are not replaced
by the replacement character anymore

[ChangeLog][QtCore][QUrl]
QUrl now fully accepts non-character unicode points; they are encoded as
percent characters; they can also be pretty decoded

[ChangeLog][QtCore][QJson]
The Writer and the Parser now fully accept non-character unicode points.

Change-Id: I77cf4f0e6210741eac8082912a0b6118eced4f77
Task-number: QTBUG-33229
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Clarify that the URL scheme does not include the ':'

From the documentation of setScheme it was not clear if the scheme should
be terminated by a ':' or not. Documentation has been updated to clarify
the expected syntax for the scheme.

Change-Id: Ied8533beef7daa12e1d5e7da0649c184efb84522
Reviewed-by: David Faure <david.faure@kdab.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Add explanation to QEXPECT_FAIL statements

Added clarifying explanations to the QEXPECT_FAIL statements.
Now it should be easier to understand what is expected from the parser.

Change-Id: I1dacd60564f292d9ce43de7254525c34fa7cdc55
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
linux-rasp-pi: Remove custom cursor code

This code was added as an optimization for showing a mouse cursor on
the Raspberry Pi.  What happens though is while the mouse cursor does
move more smoothly, the actual application becomes less smooth when the
mouse cursor is moved.  By removing the custom cursor code, performance
will no longer be effected by rendering a moving mouse cursor.

Change-Id: I9f8ac6c236cd4ff6d8e1d999a461c3e6db75d7e3
Reviewed-by: Samuli Piippo <samuli.piippo@digia.com>
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>