Misc Bug Fixes, found_posts

Fixes and improvements

• Fix resizing for images with UTF-8 characters in their filename #2072
• Added tests to cover RTL languages and special characters in image file names #2072
• Fixed MenuItem menu recursion #2071 #2083

Changes for Theme Developers

• Added new found_posts property for Timber\PostQuery. Now you can check how many posts were found in a query. #2074