Rejig !commands to be less spammy

Commands are now organized per module, and full command sysnopsis
is only given for a module at a time

tipbot/modules/tipping.py

@@ -247,6 +247,7 @@ def RainActive(nick,chan,cmd):
 
 
 RegisterCommand({
+  'module': 'tipping',
   'name': 'tip',
   'parms': '<nick> <amount>',
   'function': Tip,
@@ -254,6 +255,7 @@ RegisterCommand({
   'help': "tip another user"
 })
 RegisterCommand({
+  'module': 'tipping',
   'name': 'rain',
   'parms': '<amount> [<users>]',
   'function': Rain,
@@ -261,6 +263,7 @@ RegisterCommand({
   'help': "rain some coins on everyone (or just a few)"
 })
 RegisterCommand({
+  'module': 'tipping',
   'name': 'rainactive',
   'parms': '<amount> [<hours>]',
   'function': RainActive,

tipbot/modules/withdraw.py

@@ -147,6 +147,7 @@ def Withdraw(nick,chan,cmd):
 
 
 RegisterCommand({
+  'module': 'withdraw',
   'name': 'withdraw',
   'parms': '<address> [<amount>]',
   'function': Withdraw,
@@ -154,12 +155,14 @@ RegisterCommand({
   'help': "withdraw part or all of your balance"
 })
 RegisterCommand({
+  'module': 'withdraw',
   'name': 'enable_withdraw',
   'function': EnableWithdraw,
   'admin': True,
   'help': "Enable withdrawals"
 })
 RegisterCommand({
+  'module': 'withdraw',
   'name': 'disable_withdraw',
   'function': DisableWithdraw,
   'admin': True,