Now test_client_daemon.py can be launched like all other test modules.
test_utils.py module renamed in tstutils.py

I made this refactoring to avoid confusion with modules that test
other modules (e.g. test_client_daemon.py). since it's not a module
which test utils.py (does not even exist), it's a utility module
for tests.
Some test methods removed from TestClientDaemon to the new
'TestClientDaemonConfig' class which does not start the observer.
Speed improved of about 10-15s.
class TestClientDaemonDirState created - all tests now run in about 11 seconds
TestClientDaemon class splitted in TestClientDaemonActions and TestClientDaemonSync
removed unused imports
prints removed
style/readability: some blank lines removed
fix indentation from 8 to 4 spaces
double quotes replaced with single quotes for project consistence
some typo and english fixes
unused variable removed
comment inside docstring removed
Merge branch 'master' into test-client-daemon-speedup-refactoring

Conflicts:
	client/test_client_daemon.py
Merge branch 'master' into test-client-daemon-speedup-refactoring,
conflicts resolved.

Conflicts:
	client/test_client_daemon.py
Merge branch 'test-client-daemon-speedup-refactoring' of github.com:iacopy/share-system-team2 into test-client-daemon-speedup-refactoring
Merge branch 'master' into test-utils-renaming-refactoring.

Conflicts:
	client/test_client_daemon.py
Merge pull request #65 from iacopy/test-utils-renaming-refactoring

test_utils.py module renamed in tstutils.py
Merge branch 'master' into test-client-daemon-speedup-refactoring

Conflicts:
	client/test_client_daemon.py
Merge pull request #67 from iacopy/test-client-daemon-speedup-refactoring

Test client daemon speedup refactoring