Add 'last' command for details of latest build for specified job.  Have 'describe' command use configured URL for subsequent call for details of latest build.  Add help for 'last' command and include others in help index.
Add 'last' command for details of latest build for specified job.  Have 'describe' command use configured URL for subsequent call for details of latest build.  Add help for 'last' command and include others in help index.

Ev1l/hubot-scripts,sklise/hubot-scripts,iilab/hubot-scripts,terryjbates/hubot-scripts,ambikads/hubot-scripts,yigitbey/hubot-scripts,jan0sch/hubot-scripts,phillipalexander/hubot-scripts,ericjsilva/hubot-scripts,azimman/hubot-scripts,MaxMEllon/hubot-scripts,chauffer/hubot-scripts,contolini/hubot-scripts,opentable/hubot-scripts,wsoula/hubot-scripts,n0mer/hubot-scripts,alexhouse/hubot-scripts,cycomachead/hubot-scripts,davidsulpy/hubot-scripts,marksie531/hubot-scripts,justinwoo/hubot-scripts,jankowiakmaria/hubot-scripts,modulexcite/hubot-scripts,magicstone1412/hubot-scripts,jacobtomlinson/hubot-scripts,dbkaplun/hubot-scripts,GrimDerp/hubot-scripts,arcaartem/hubot-scripts,zecahnin/hubot-scripts,github/hubot-scripts