Rough draft of a generic changeset viewer.

Changed commit handling to be the same as import handling: the vcs plugin handles saving data, not the Source framework.

Only delete the old repository if saving the new repo doesn't fail.

Moved core Source plugin to plugin_lang_get() usage.

Fix repo update when null is returned (eg, no plugin has modified the repo).

Added ability to grant remote check-in permissions to entire subnets.

Fixed some non-internationalized strings.

Expect an actual repo object from the precommit hook.

Fixed some import problems.

Moved repo import to a non-redirected output style.

Added quick link to Delete for partially imported repositories.

Expect named array elements from pre-commit event.

Fixed bug: Create Repository form shown to users without access.

Initial Public Offering.