colored and indentable logger
use RunLogger
log framewoks update
little change
debug setting

* color enable
* output detail
* pry when exception
logger format changed
apt-get update without progress indicator
logger format update
cleanup gem source
change output style
reduce output
bugfix: step show title
nocolor: erase color property
setting third lib version
rspec passed
Merge branch 'RC2'

* logger class: color/level/title/detail
* support debug/nocolor
* reduce command stdout/stderr