Build Hooks

Hi,

The `release` method of `StandardBuildProcess` makes a call to `pre-build` hooks, but `post-build` hooks don't seem to exist. Any objections if I add them?

The `build` method of the build process implementations don't call the `pre-build` hooks, but I think they should. Any objections if build calls them as well?

Mark.

Start with the StandardBuildProcess release method and the build methods of the build process implementations mentioned in the issue. Trace how pre-build hooks are currently invoked, then determine the expected behavior for post-build hooks and build-time pre-build hooks. Done means both hook paths are implemented consistently and covered by the relevant build-process tests.

Written by the indexing model from the issue text.