Corrects typos "coearse," "proejct," and "unecrypts"

Misspelling of "coerce" found in the docstring body
of method _boot from class ServerManager. Misspellings
of "project" and "unencrypts" found in docstrings
of client.py and crypto.py.

Change-Id: I052c321f3ad5e13aa57a559e2f28ec5eec32a9b4

novaclient/crypto.py

@@ -22,7 +22,7 @@ class DecryptionFailure(Exception):
 
 
 def decrypt_password(private_key, password):
-    """Base64 decodes password and unecrypts it with private key.
+    """Base64 decodes password and unencrypts it with private key.
 
     Requires openssl binary available in the path.
     """

novaclient/v1_1/cloudpipe.py

@@ -19,7 +19,7 @@
 
 
 class Cloudpipe(base.Resource):
-    """A cloudpipe instance is a VPN attached to a proejct's VLAN."""
+    """A cloudpipe instance is a VPN attached to a project's VLAN."""
 
     def __repr__(self):
         return "<Cloudpipe: %s>" % self.project_id

novaclient/v1_1/servers.py

@@ -428,7 +428,7 @@ def _boot(self, resource_url, response_key, name, image, flavor,
                       file-like object). A maximum of five entries is allowed,
                       and each file must be 10k or less.
         :param reservation_id: a UUID for the set of servers being requested.
-        :param return_raw: If True, don't try to coearse the result into
+        :param return_raw: If True, don't try to coerce the result into
                            a Resource object.
         :param security_groups: list of security group names
         :param key_name: (optional extension) name of keypair to inject into