Merge pull request #27 from rackerlabs/apprentice

fixed nova-agent bintar build script for RHEL
agent installer for test
install agent changes
install agent changes
agent installer changes
agent installer changes
added agent tester
agent tester changes
agent tester changes
agent tester changes
agent tester changes
agent tester changes
added reset password test
installer changes
updated nova-agent version to v0.0.1.38 at Autoconf
tools/install_agent updated to use latest release tag at GitHub for version
applied quick fix for FreeBSD build script issue with bash/sh/csh; run install_pre_requisite first then bintar using bash
applied quick fix for FreeBSD build script issue with bash/sh/csh; run install_pre_requisite first then bintar using bash