added ability to remove contact

Ignore-this: 36777c1a8048841135f1243fc6961fa2

darcs-hash:20130314035401-c21fe-77971e05513ff7b6ceefff58e1590ecffa571b21
fixed SLB compilation

Ignore-this: e1134902e08ca8ae615f6120e68465c5

darcs-hash:20130314035916-c21fe-cdadd5756993a57a13dea0199f1521aed8bbbfbb
added ability to quit a session

Ignore-this: 8136283786c3164cfa8e2d1ed9953a41

darcs-hash:20130315025042-c21fe-5e702a85e09e4aa28fa0c1d77e8f4feb785a88ee
sessions specific menu items are enabled and disabled as you click tabs

Ignore-this: 4062d4f3a57b1e47e7fd4ec942d25211

darcs-hash:20130315030153-c21fe-259a8d69b02b218fb19f730f37438db41d44ad4f
added dialogs for quiting and removing

Ignore-this: edb0d8a0adbd073d749a32e77e2387de

added dialogs for making sure the user wants to quit a session, remove a contact, or
remove a greeter

darcs-hash:20130315031718-c21fe-44814e741e6e6bb61745d32db291f017c7a5931b
added simple mark to udp message

Ignore-this: 3d4bdd822a37ab9acf03ebc675c379ac

So that i can easily discard other UDP messages coming in.

darcs-hash:20130315033446-c21fe-221c69c2ae4064d962293b6ecac93e6842f619ba
Merge branch 'master' into moc_parse