Quick post performance, progress and other minor improvements

* Improve the performance of uploading images:
* The compression of the JPEG images has been increased. The quality was originally set to 90% but after some testing and research it seems that 60% should be more than acceptable. This should reduce the file size by ~50% for the images being uploaded.
* In the quick post editor as soon as an image is selected it starts uploading so while the user is writing the title/content the image can hopefully finish. Once the user taps the Publish button only the post has to be uploaded. If the user selects a different blog the image is removed from the original blog and then queued to upload to the newly selected blog.
* Add a circular progress view while the quick post image is uploading. Once the image has completed the icon will switch to a spinner while the post is uploaded.
* Add an action sheet to the quick post button while the post/image are being uploaded to allow the user to stop or remove the post being uploaded
* Add an action sheet to the quick post button to allow the user to easily open the previous failed quick post inside the quick post editor

* Bug fix for #1472 - Set the quick post to uploading right away so that the user can not edit the post while it is being uploaded
* Fix the blog selector button so the 'g' is not cut off
* Fix to hide the paperclip when the quick post picture is zoomed
* Add a block of code for opening a post in the full editor for the quick post editor to use