Fixed README_Admin typos and updated .gitignore

./Gemfile.lock (and other *.lock files? since that's the only one) does not need to be in version control?  (I didn't commit its removal, though.)

Similarly with *.swp?

References to "cmusv" in that ReadMe should be "cmusv-cedar", no?

Commit message:
README_Admin.md: "cmusv","cmusv-ceddar" -> "cmusv-cedar"
Removed .bash_profile.swp (swap file).
.gitignore; Added *.swp (and *.lock) to list of git ignored files.