Updates plugin to version 1.5.  Allows registration of Pro version of plugin.  Includes first pro version feature: front end testimonial submission.  Replaces banner with image matching new website header.

git-svn-id: https://plugins.svn.wordpress.org/easy-testimonials/trunk@786071 b8457f37-d9ea-0310-8a92-e5e31aec5664
Minor fix to address bug with registration.

git-svn-id: https://plugins.svn.wordpress.org/easy-testimonials/trunk@786087 b8457f37-d9ea-0310-8a92-e5e31aec5664