OBS: You'll need to resync/rebuild your database!

- This implements an updated, clearer and more robust access system. The policy is now to lock that which is not explicitly left open.
- Permission strings -> Lock strings. Separating permissions and locks makes more sense security-wise
- No more permissiongroup table; permissions instead use a simple tuple PERMISSIONS_HIERARCHY to define an access hierarchy
- Cleaner lock-definition syntax, all based on function calls.
- New objects/players/channels get a default security policy during creation (set through typeclass)

As part of rebuilding and testing the new lock/permission system I got into testing and debugging several other systems, fixing some
outstanding issues:
- @reload now fully updates the database asynchronously. No need to reboot server when changing cmdsets
- Dozens of new test suites added for about 30 commands so far
- Help for channels made more clever and informative.

game/gamesrc/commands/basecommand.py

@@ -10,7 +10,6 @@ See src/commands/default/muxcommand.py for an example.
 
 from src.commands.command import Command as BaseCommand
 from src.commands.default.muxcommand import MuxCommand as BaseMuxCommand
-from src.permissions import permissions
 from src.utils import utils 
 
 class MuxCommand(BaseMuxCommand):
@@ -41,7 +40,7 @@ class MuxCommand(BaseMuxCommand):
         cmdhandler):
            self.key - the name of this command ('look')
            self.aliases - the aliases of this cmd ('l')
-           self.permissions - permission string for this command
+           self.locks - lock definition for this command, usually cmd:<func>
            self.help_category - overall category of command
            
            self.caller - the object calling this command
@@ -105,7 +104,7 @@ class Command(BaseCommand):
     used by Evennia to create the automatic help entry for
     the command, so make sure to document consistently here. 
     """
-    def has_perm(self, srcobj):
+    def access(self, srcobj):
         """
         This is called by the cmdhandler to determine
         if srcobj is allowed to execute this command. This
@@ -114,7 +113,7 @@ class Command(BaseCommand):
         By default, We use checks of the 'cmd' type of lock to determine
         if the command should be run. 
         """
-        return permissions.has_perm(srcobj, self, 'cmd')
+        return super(Command, self).access(srcobj)
 
     def at_pre_cmd(self):
         """