Merge pull request #366 from rightscale/ivory_14_07_acu160048_document_outstanding_tickets

Ivory 14 07 acu160048 document outstanding tickets
Merge pull request #374 from rightscale/cornsilk_14_7_acu160895_em_http

acu160895 - Pick up right_agent v2.1.1
Merge pull request #376 from rightscale/ivory_14_07_acu159967_supress_error_description_on_rightscript_exits

acu159967 - revert changes due to incompatibility with PowerShell script...
Merge branch 'master' into ivory_14_07_acu160049_prepare_rc2