Also I'm that needs to be installed with sudo as gems won't normally install into the home user directory without more setup
apache2 apache2-threaded-dev build-essential git-core \
postgresql postgresql-contrib libpq-dev postgresql-server-dev-all \
libsasl2-dev
apache2 apache2-threaded-dev build-essential git-core \
postgresql postgresql-contrib libpq-dev postgresql-server-dev-all \
libsasl2-dev
+sudo gem1.9.1 install bundler
```
Note that the "1.9.1" Ubuntu packages do in fact contain ruby 1.9.3.
```
Note that the "1.9.1" Ubuntu packages do in fact contain ruby 1.9.3.