plugin account, tools: some cleaning account + email and password tools:

- plugin misc account has been reordered and cleaned a bit.
    - new xmpp_domain setting is used to get the domain name of main XMPP server
    - password generation method has been moved to tools.utils
    - email sending method has been moved to tools.email

src/tools/utils.py

@@ -26,6 +26,7 @@ log = getLogger(__name__)
 import datetime
 import time
 import sys
+import random
 
 
 def clean_ustr(ustr):
@@ -54,6 +55,17 @@ def xmpp_date(timestamp=None, with_time=True):
     template = u"{}T{}".format(template_date, template_time) if with_time else template_date
     return datetime.datetime.utcfromtimestamp(time.time() if timestamp is None else timestamp).strftime(template)
 
+def generatePassword(vocabulary=None, size=20):
+    """Generate a password with random characters.
+
+    @param vocabulary(iterable): characters to use to create password
+    @param size(int): number of characters in the password to generate
+    @return (unicode): generated password
+    """
+    random.seed()
+    if vocabulary is None:
+        vocabulary = [chr(i) for i in range(0x30,0x3A) + range(0x41,0x5B) + range (0x61,0x7B)]
+    return u''.join([random.choice(vocabulary) for i in range(15)])
 
 def getRepositoryData(module, as_string=True, is_path=False, save_dir_path=None):
     """Retrieve info on current mecurial repository