Just use 2.7.3 for now
Upgrade gems
Add a script/ dir for low-use binaries

These are extra shell scripts I use every so often, but aren't
necessarily part of the whole gem package. So they're included
here and in the PATH.
Add easy find and replace with Git Grep

Use `replace {from} {to} {file_glob}` to replace words in an
entire directory of files. Leverages `git grep` and `sed` to do
its dirty work. Ripped off from a Gist and modified at some
point.