'Labman' -> 'LabControl' (#526)

* More labman to labcontrol renaming

Renames most internal instances of 'labman' to a suitable variant of
'LabControl'. For the most part, only database schema-related instances remain.

* Additional modifications to support name change

* Change labman -> labcontrol in text

Mostly this is to avoid confusion while running things like nosetests.

* Add Chrome as a dependency of Travis

Test adding Chrome as a dependency of Travis builds before requiring it
(in headless mode) for unit-testing.

.travis.yml

@@ -2,6 +2,9 @@ dist: trusty
 language: python
 # qiita travis has set sudo to false
 sudo: required
+addons:
+  # install chrome for testing purposes
+  chrome: stable
 group: deprecated-2017Q4
 env:
   matrix:

labcontrol/db/configuration_manager.py

@@ -51,7 +51,7 @@ class ConfigurationManager(object):
     def create(config_fp, test_env, certificate_filepath, key_filepath,
                cookie_secret, db_host, db_port, db_name, db_user, db_password,
                db_admin_user, db_admin_password, log_dir, qiita_server_cert):
-        """Creates a new labman configuration file
+        """Creates a new labcontrol configuration file
 
         Parameters
         ----------
@@ -111,7 +111,7 @@ def __init__(self):
             self.conf_fp = expanduser('~/.labcontrol.cfg')
             if not exists(self.conf_fp):
                 raise RuntimeError(
-                    'Please, configure labman using `labman config`. If the '
+                    'Please, configure labcontrol using `labcontrol config`. If the '
                     'config file is not in `~/.labcontrol.cfg`, please set the '
                     '`LABCONTROL_CONFIG_FP` environment variable to the '
                     'configuration file')
@@ -169,7 +169,7 @@ def _get_qiita(self, config):
         self.qiita_server_cert = config.get('qiita', 'SERVER_CERT')
 
 
-CONFIG_TEMPLATE = """# Configuration file generated by labman on %(date)s
+CONFIG_TEMPLATE = """# Configuration file generated by labcontrol on %(date)s
 
 # ------------------------- MAIN SETTINGS ----------------------------------
 [main]