Make existing Grunt tasks clearer, and improve the release packaging process.

[DJPaul]

A few times during this and the last release cycle, I've noticed that we've forgotten to run the pre-commit Grunt task. I also remember some confusion for one of the recent minor releases (I think); we thought "build-release" would produce a version of BuddyPress ready to be added to our distribution SVN -- but it doesn't (it includes a copy of bbPress 1, which we set up as a svn:external in our distribution SVN).

I'm going to commit two changes to the Grunt tasks:

1) Rename the build-* tasks to something shorter and more descriptive of what it affects.
2) Add a new task that produces a version of BuddyPress ready to go into our distribution SVN.

Making the build processes easier to understand and more helpful is something I think we have to continue iterating on, but I think these few simple renames will make things clearer, especially for new contributors to the project. And anything that saves us work when we do a release is a win, too.

[djpaul]

In 9229:

Grunt: rename the build-* tasks and add new task to help package releases.

Clarifying the existing build-* tasks will help reduce confusion for contributors to the project by making it easier to understand when each should be run.
A new task to help the BuddyPress team package new releases will help make our release process more straightforward and hopefully save time.

The Grunt tasks are now:

• "src" -- operates on the src/ folder. To be run during development.
• "commit" -- operates on the src/ folder. To be run before commit.
• "build" -- updates the build/ folder. Creates a build of BuddyPress ready for full testing (with minified assets, etc).
• "release" -- updates the build/ folder. Creates the release version of BuddyPress, ready to be added to our distribution SVN.

In the near future, we'll probably add a grunt watch task which will do the same thing as the new src task.

Fixes #6064

[netweb]

Reopening to have the Grunt tasks perform what the tasks descriptions in r9229 documents

• "build" -- updates the build/ folder. Creates a build of BuddyPress ready for full testing (with minified assets, etc).
• "release" -- updates the build/ folder. Creates the release version of BuddyPress, ready to be added to our distribution SVN.

[johnjamesjacoby]

In 9427:

Grunt build and release tasks were reversed. Props netweb. Fixes #6064.