Rather removeFolder than addFolder to watcher (typo fix).
Checks if the folder from map is still defined.

I saw a crash were a folder which was deleted was dereferenced later
in the Quota check slot. There the folder pointer returned from folder
map was zero.
Remove explicit logging.
Add folder to schedule queue in setupFolders method.

This fixes bug #1352
Remove wipeAllJournals after rebase mistake.
rename csync/doc to csync/csync_doc to satisfy cmake.

CMake throws a warning if there are two subdirs with the same name.