Task-number: QTCREATORBUG-450

Moves signing info from one of the run configurations as a build step
to the build configurations.
Users with different signing settings in different run configurations
need to re-configure their projects manually (by creating build
configurations for the different signing settings).

Reviewed-by: Tobias Hunger

for sis creation.

Modify CodePaster::fetch to do a mimetype detection on the
content, create a filename with the matching extension and
open that file.
This gives correct syntax highlighting  and makes "Save as"
more convenient. Keep the file around and delete on exit.

Modify patch mimetype with some content detection (higher priority
than C++).

Add a "current patch file" to the VCSBasePlugin::State. Add "Apply
patch" to git with whitespace fix.

Reviewed-by: dt

Reviewed-by: dt

Task-number: QTCREATORBUG-926
Reviewed-by: Erik Verbruggen

Task-number: QTCREATORBUG-874

processEvents() might lead to an invalid fxObjectNode

a valid stack trace.

Task-number: QTCREATORBUG-909.
Reviewed-by: Thorbjørn

Task-number: QTCREATORBUG-874
Reviewed-by: Erik Verbruggen

... use it.

Reviewed-by: dt

5 seconds is tight on slow platforms

Use data based tests