Added a few easy list functions
Added a few easy list functions

Method -> API Call
==================
working_schedule -> listWorkingSchedule
start_work -> startWork
stop_work -> stopWork
checkins -> listCheckins
wikis -> listWikis
articles -> listArticles
revisions -> listRevisions
templates -> listTemplates
discussion_groups -> listDiscussGroups
settings -> viewSettings

austinmoody/ruby-fogbugz-api