Few fixes, added build link & js for project path

Hey there!
Here's a few commits to ignore files created by pow, rvm & resque.yml.
I've also added a build link on the projects show page as it's one less step to running a build.
There's also some javascript I added to set the project path based on the project name.
Looks like a neat project and works great. I'm working on integrating a Git URL so Gitlab CI clones the repo into the set path. This would make it a lot easier to cerate projects!