SetupWizard: Keep initial local folder to compare later for changes.

If the local folder changes, the sync has to be reinitialized as
well. Until now we did not detect that, which led to the case that
the sync folder was not reinitialized in case only the local folder
changed in the setup dialog.
1.6.2
Updated Changelog for 1.6.2
Bumped to 1.6.2 rc1
WinInstaller: No hardcoded www in front of the url on final page.
Fix corruption while trying to resume and the server don't suport it

Issue #1982
network limit: Never wait more than 10 seconds

When using the "Limit automatically" limit, we wait for 25% of the time
it took to upload something.
However, if we go to sleep while uploading, the time it took to upload may take
days. And waiting for 25% of a day is too long.
So never wait for more than 10 seconds

This may be related to issue #1880
csync_owncloud:  fix the name of the permissions property
Merge remote-tracking branch 'origin/1.6' into il

Conflicts:
	VERSION.cmake
	src/mirall/propagator_qnam.cpp
	src/mirall/propagator_qnam.h
Merge branch 'il'

Conflicts:
	src/mirall/propagator_legacy.h