Added a promoted build parameter definition.

This change allows users to configure a promotion parameter for a job.  The user selects the job and the promotion that must be attained in order for a build in the selected job to appear in the pick list of builds when selecting the parameter value.
Merge pull request #22 from petehayes/master

Build promotion parameter
Merge pull request #23 from deemen/master

Manual Approval File Parameter Fix
[maven-release-plugin] prepare release promoted-builds-2.9
[maven-release-plugin] prepare for next development iteration
[FIXED JENKINS-17341] NPE after JENKINS-3265 fix.
[JENKINS-15156] PromotionProcessTest failed with parent set to 1.507 because in lazy-loading versions of Jenkins the build list for a project must be explicitly created.
Merge pull request #24 from jglick/NPE-JENKINS-17341

[FIXED JENKINS-17341] NPE after JENKINS-3265 fix.
Merge pull request #25 from jglick/lazy-loading-compat

PromotionProcessTest failure with parent set to 1.507.
[maven-release-plugin] prepare release promoted-builds-2.10
[maven-release-plugin] prepare for next development iteration