Summary:

Add hgsubversion support to post-review

Review Request #688 — Created Dec. 30, 2008 and submitted

Description

Adds hgsubversion support to post-review.

Testing Done

Manually verified it works.

Looks good. Just some small stylistic things.

/trunk/reviewboard/contrib/tools/post-review (Diff revision 1)
```
Blank line before/after each if block.
```
/trunk/reviewboard/contrib/tools/post-review (Diff revision 1)
```
Here too.
```

/trunk/reviewboard/contrib/tools/post-review (Diff revision 1)

Blank line before and after this (after block, before comment).

/trunk/reviewboard/contrib/tools/post-review (Diff revision 1)
```
Blank line after this.
```
/trunk/reviewboard/contrib/tools/post-review (Diff revision 1)
```
Blank line after this.
```

Updated per requests.

Ship it!