Merge pull request #15 from GarfieldLinux/master

setup script for nginx &postgresql
clone vm interface
install nokogiri 1.5.5
nokogiri needs to be less or equal than version 1.5.5
Add an approach which can let vm install on the biggest datastore
add rbvmomi gem
change variable
Merge pull request #16 from rogerluo410/master

clone vm interface
add gem source
Merge remote-tracking branch 'upstream/master'
nokogiri need not uninstall in staging env
user require_relative instead of require
Merge pull request #17 from teddy-hoo/master

fix bugs in weiqi's code
Merge remote-tracking branch 'upstream/master'

Conflicts:
	config/loadinfo.rb