Added option of specifying the commit SHA as a parameter which may contain environment variables.
Improved logging of exceptions. Will now log the entire stack trace instead of just the message.
Support notifying Stash about in progress builds
Make it user configurable if repeated builds with the same commit SHA should be shown as individual builds in Stash.
By default if a job is run with the same commit SHA twice, the latest run will take precedence.
If a build description has been set, send it to Stash
Merge pull request #9 from tandrup/develop

Multiple small fixes after we have started using Jenkins-Stash integration