Improvements to Find and Replace Utility

[rishifter]

We believe the Find and Replace utility provided in Craft could benefit from some improvements, which will come in handy especially for sites with a lot of content. It'd be nice if some of these new options are considered to be added to the utility:

1. Partial-word/Full-word search option
2. Dry run with option to selectively replace items (similar)
3. Case-sensitive searches
4. Improved results when performing a replacement — how many items were replaced?

[TheFunkyMonk]

Would be nice to have some kind of an interstitial "review" screen too, where you could see a diff before committing to the changes.