Fix minor Python syntax errors

The installation fails because of these:

	TabError: inconsistent use of tabs and spaces in indentation
	SyntaxError: Missing parentheses in call to 'print'
Fix minor Python styling issues

* Do not use sapces inside parenthesis
* make indend PEP8
* empty lines should not contain whitespaces
[tx-robot] updated from transifex
SyncEngine: Abort sync with error if system exclude file is missing.

Syncing without the system exclude file would cause lots of trouble.
For instance we would try uploading the temporary files we store
partially completed downloads in.
SyncEngine: Fix invalid slot name in sync error condition.
SyncEngine: Use exclude file fallback next to binary on linux.

This is mainly useful for developers where the system-wide exclude file
may not exist.
ownCloudTheme: Fix casing in appName()

Without this fix, the section in the config file uses the wrong name,
leading to re-configuration of the client needed.
[tx-robot] updated from transifex
Folders: Signout should not switch folders to paused state. #2112

On signout, syncs that are running in folders are aborted. That used to
also switch the state of these folders to 'paused'. To fix that, aborts
that are caused by user actions no longer change the folder paused
state.

Aborts due to errors should still pause folders! Otherwise we'd try
resyncing them even though there was an error.
Clean up stale journal entries and temporaries. #2057

* Downloadinfo entries for files that no longer need to be downloaded
  are useless and can be removed. In particular, the temporary files
  holding partially retrieved files are now deleted when no longer
  necessary.
* The same is true for blacklist entries for paths that are no longer
  being discovered.
* Same for uploadinfos for files that no longer need to be uploaded.
Fix style issues.
Merge pull request #2162 from ckamm/error-missing-exclude

Don't do a broken sync when the system exclude file is missing
Merge pull request #2161 from ckamm/stale-downloadinfo

Clean up stale journal entries and temporaries. #2057
Propagator: Use csync to get the modification time.

See owncloud/core#9781
[tx-robot] updated from transifex
SyncJournal: Don't use C++11 features.
CSync: Show file size and inode during update traversal

With the previous code, we saw those values only when the file/dir was also in the local DB
Merge pull request #2138 from owncloud/cleanup_shell_integration_nautilus

Cleanup and make python3 compatible shell integration nautilus
[tx-robot] updated from transifex
[tx-robot] updated from transifex