Now support multiple -k options on the command line.

Patch by Vladimir Marek

fixes #113

offlineimap/init.py

@@ -50,11 +50,15 @@ def lock(config, ui):
 def startup(versionno):
     assert versionno == version.versionstr, "Revision of main program (%s) does not match that of library (%s).  Please double-check your PYTHONPATH and installation locations." % (versionno, version.versionstr)
     options = {}
+    options['-k'] = []
     if '--help' in sys.argv[1:]:
         sys.stdout.write(version.getcmdhelp() + "\n")
         sys.exit(0)
 
     for optlist in getopt(sys.argv[1:], 'P:1oqa:c:d:l:u:hk:f:')[0]:
+        if optlist[0] == '-k':
+            options[optlist[0]].append(optlist[1])
+        else:
             options[optlist[0]] = optlist[1]
 
     if options.has_key('-h'):
@@ -81,9 +85,8 @@ def startup(versionno):
     config.read(configfilename)
 
     # override config values with option '-k'
-    for option in options.keys():
-        if option == '-k':
-            (key, value) = options['-k'].split('=', 1)
+    for option in options['-k']:
+        (key, value) = option.split('=', 1)
         if ':' in key:
             (secname, key) = key.split(':', 1)
             section = secname.replace("_", " ")