Add some missing dependencies
Use wget option to check if the file changed before downloading
Merge pull request #27 from safchain/check_downloaded

Use wget option to check if the file changed before downloading
Merge pull request #24 from safchain/dependencies

Add some missing dependencies
Ubuntu does not support anymore package chkconfig

From release 12.10, Ubuntu removed the support of chkconfig package.
I set a specific install chkconfig command in case it fails, it fails
alone.
Merge pull request #28 from Doude/chkconfig_and_Ubuntu

Ubuntu does not support anymore package chkconfig
devstack changes to have it work with github changes
Fix error when load environments from command-line. e.g. $ source openrc dirname: invalid option -- 'b' Try 'dirname --help' for more information.
Add localrc variables to able to change java memory use

Add localrc variables in order to change java memory param
of cassandra and zookeeper.
Fix issue when exec control-node and introduce a new localrc var

control-node has to be executed by root
introduction a localrc var in order to set the ip of the physical
interface, useful when multiple stack/unstack.
start contrail analytics daemons w/ devstack
Correct some bug:

- chkconfig not available on Ubuntu 13.10
- Analytics patch config file errors
- has_neutron_plugin_security_group should return TRUE to support
  security group
Correct some bug:
- chkconfig not available on Ubuntu 13.10
- Analytics patch config file errors
- has_neutron_plugin_security_group should return TRUE to support
  security group
Download dependencies only if they changed
Merge branch 'devel' of https://github.com/Doude/devstack into devel
/neutron_thirdparty/contrail

Conflicts:
	lib/neutron_thirdparty/contrail