Count up version in the main file

git-svn-id: https://plugins.svn.wordpress.org/scibloger/trunk@971733 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update changelog

git-svn-id: https://plugins.svn.wordpress.org/scibloger/trunk@971735 b8457f37-d9ea-0310-8a92-e5e31aec5664