Revising dependency_ubuntu.py to install libmemcached-0.53 (draft)
install/redhat/dependency_redhat.py: Changed indentation.
dependency_ubuntu.py: Added wget installation code.
install/: Added code to print start and end times for subtasks during the installation.
Testing cleanup script; moved pip_install.py to top level of makahiki/install.
install/run_initialize_instance.py, install/run_update_instance.py: Formatting fixes in error messages.
makahiki/install: Fixes and documentation related to the cleanup script.
makahiki/install/redhat/scl_install.py: Added code to delete the .repo file from makahiki/install/downloads after it has been copied into /etc/yum/repos.d.
install/doc/ubuntu_readme.txt: Comitting draft memcached and headless web server testing documentation