RadGH, Part 2 — Wp4.5

[mcaskill]

From tomaszsita#54

Here's a new collection of changes made to your plugin. This expands on a previous pull request I submitted earlier: tomaszsita#49

New changes since that pull request are:

1. Converted quality dropdowns to numeric inputs, allowing sizes like 85% (This behavior may not be desired, if so then skip commit 07ce8aa)
2. If you use Regenerate Thumbnails, a new option will re-crop an image after the thumbnails have been regenerated.
3. Due to the above, I removed the warning that Regenerate Thumbnails was incompatible has been removed. This warning was added in the previous pull request.
4. Fixed a few URLs which were not giving a full admin url. Probably not necessary unless you have a custom admin url set up.
5. Fixed a few small code errors so my IDE (phpstorm) was happier.
   Note: Some users on wordpress.org complained about problems with the dialog closing and not saving images. I have not experienced this issue with my build of the plugin. If you can replicate the problem in your own version, you might find this version works. I'm not sure if that's the case, I haven't tested the original in some time ;)