0.2.0.1 small bug fix 

git-svn-id: https://plugins.svn.wordpress.org/online-lesson-booking-system/trunk@787184 b8457f37-d9ea-0310-8a92-e5e31aec5664
0.3.0 upgrade
* Table structure and processing were changed
* "Admin only" widget was added
* Bug fix


git-svn-id: https://plugins.svn.wordpress.org/online-lesson-booking-system/trunk@791579 b8457f37-d9ea-0310-8a92-e5e31aec5664
0.3.0 upgrade
* Table structure and processing were changed
* "Admin only" widget was added
* Bug fix


git-svn-id: https://plugins.svn.wordpress.org/online-lesson-booking-system/trunk@791580 b8457f37-d9ea-0310-8a92-e5e31aec5664
0.3.0 upgrade
* Table structure and processing were changed
* "Admin only" widget was added
* Bug fix


git-svn-id: https://plugins.svn.wordpress.org/online-lesson-booking-system/trunk@791603 b8457f37-d9ea-0310-8a92-e5e31aec5664