Some typos need to be fixed

Change-Id: I00e1988600799e8e206faa611a469d5f5214378b

designate/dnsutils.py

@@ -223,7 +223,7 @@ class ZoneLock(object):
                 self.data[zone] = now
                 return True
 
-            LOG.debug('Lock for %(zone)s can\'t be releaesed for %(period)s'
+            LOG.debug('Lock for %(zone)s can\'t be released for %(period)s'
                       'seconds' % {'zone': zone,
                                    'period': str(self.delay - period)})
 

designate/manage/pool.py

@@ -40,7 +40,7 @@ class PoolCommands(base.Commands):
         self.central_api = central_rpcapi.CentralAPI()
 
     @base.args('--file', help='The path to the file the yaml output should be '
-               'writen to',
+               'written to',
                default='/etc/designate/pools.yaml')
     def generate_file(self, file):
         try:

designate/network_api/neutron.py

@@ -36,7 +36,7 @@ LOG = logging.getLogger(__name__)
 neutron_opts = [
     cfg.ListOpt('endpoints',
                 help='URL to use if None in the ServiceCatalog that is '
-                'passed by the requrest context. Format: <region>|<url>'),
+                'passed by the request context. Format: <region>|<url>'),
     cfg.StrOpt('endpoint_type', default='publicURL',
                help="Endpoint type to use"),
     cfg.IntOpt('timeout',