Update CONTRIBUTING.md

Signed-off-by: Jonathan Rudenberg <jonathan@titanous.com>
Update MAINTAINERS

Signed-off-by: Jonathan Rudenberg <jonathan@titanous.com>
Merge pull request #9 from flynn/update-contributing

Update CONTRIBUTING.md
Update sdutil usage

Signed-off-by: Jonathan Rudenberg <jonathan@titanous.com>
Build sdutil using Makefile

Signed-off-by: Jonathan Rudenberg <jonathan@titanous.com>
Update Makefile

Signed-off-by: Jonathan Rudenberg <jonathan@titanous.com>
Update README.md
fix(runner): skip sourcing if no file exists

Before, slugrunner would try to source .profile.d/* as a file,
which would fail because .profile.d/* is not present. Setting
noglob will skip the loop if no file is present in the directory.

To show the difference between the two commands:

```
$ for file in .profile.d/*; do echo $file; done
.profile.d/*
$ for file in `ls .profile.d`; do echo .profile.d/$file; done
$ shopt -s noglob
$ for file in .profile.d/*; do echo $file; done
$ for file in `ls .profile.d`; do echo .profile.d/$file; done
```

See http://www.gnu.org/software/bash/manual/html_node/The-Shopt-Builtin.html

Signed-off-by: Matthew Fisher <matthewf@opdemand.com>
Merge pull request #10 from deis/fix-source-profiled

fix(runner): skip sourcing if no file exists
Merge branch 'master' of github.com:flynn/slugrunner

Conflicts:
	Dockerfile