Fixed README.md

Run bundle before attempting to run rake
Merge pull request #89 from tropo/master

Fixed README.md
update ci script ci-stemcell-build-warden.sh
updated readme with login sample command updates
Merge pull request #90 from jbayer/master

updated readme with login sample command updates
update README
- fix broken url
- how to find out the IP of AWS box
Fixed typo for 'attribue'
Merge pull request #91 from lexigen/fix_typo

Fixed typo for 'attribue'
bump bosh-lite box version to 186
Update bundle

Signed-off-by: Alex Stupakov <astupakov@pivotallabs.com>