Add build instructions tab, or dialog

We have several builds that require special instructions to run them with either required variables or other information that should be modified each time the build is run. For example one project is run from tags but only for release builds in certain environments. Another project requires the last build tag to be inserted in a variable in order to produce a custom diff script for deployment instructions on a highly manual deployment. (this is in the build).

Not all builds require this but it would be helpful to be able to document on the build itself what must occur before the build is initiated. All that would be required is a text box where special conditions could be ennumerated.

I would extend this to deployment environments as well.