uppercased file name

it's the common practice for README files.
UCSF statt ucsf.
Merge branch 'readme_tweaks' of https://github.com/stopfstedt/ucsf_install into stopfstedt-readme_tweaks

Conflicts:
	README
Merge branches 'stopfstedt-readme_tweaks' and 'master'
Merge branch 'master' of https://github.com/ucsf-drupal/ucsf_install