Added python-xcaplib dependency

Ignore-this: 973f353034914cefacd7c0c68a8c839

darcs-hash:20100901123022-58252-48fc842a26c7f2c79eb788f0d14abb752ae0b2fb
Fixed version number for xcaplib dependency

Ignore-this: 19fa28cb8ffdd5a51ba6d8d679e0733c

darcs-hash:20100901123213-58252-e14a04af60ca5f7a3f61d655ecfe07c67231d307