This reverts commit f1b3e03f.

- the file/folder's permission is now stored in the file cache
- BackGroundWatcher has been removed - this has meanwhile be replaced by occ files:scan which can be executed in a cron jobs
- increase version to trigger database migration

# The first commit's message is:

adding tests for long paths
increment path field in database up to 4000 (maximum for Oracle - otherwise we could use php's 4096)
increment version to trigger database migration
adding unit test for too long path

# This is the 2nd commit message:

fix too long path

1. We're maintaining the same code twice which leads inevitably to problems as this one. The createHtaccess routine is only used to use the correct paths to the 404 and 403 document.
2. Updating the ownCloud instance as described in our documentation (`Delete everything from your ownCloud installation directory, except data and config.`) will break the links to the ErrorDocuments anyways and show the default error handlers if ownCloud is not installed in the root directory.

Whooah! - I'm even committing this total important change without peer review ;-)

put the current version and edition into a seperate file to simplify packaging. introduce update channels and build version for automated channel updates. More about that later

Conflicts:
	lib/ocsclient.php
	lib/util.php