Switch to /bin/sh instead of bash.
Merge pull request #158 from mrunalp/bug/ssh_default_shell

Switch to /bin/sh instead of bash.
Fix doc for getting logs.
Merge pull request #159 from mrunalp/doc/logs

Merged by openshift-bot
Code structure documentation
Merge pull request #161 from pmorie/readme

Code structure documentation
Move docker templates into templates.go
Make downloadScripts and prepareSourceDir executed in parallel