Show MySQL version

To debug SQL not understood on Travis.
Minor: don't show MySQL version
Install MySQL 5.6
Try not escaping '+' and '/'
Escape '/' in sed expression
Double escape for YAML
See updated MySQL config
Minor: remove space
README updates
Fix #1355 "Summary page shows "23:44 pm""
Also escape '+'
Use @localhost when dropping user
Fix #1356 "IE7: Created/Modified columns too narrow"
For #1196: Summary page links to Home page
Add missing icons in buttons
For #1196: Landing page links to Home page
Fix NPE when calling Java code
getContentTypeCharset is in Java and can return null
Produce XForms schema on root element, fix #1366
Typo
Fix element order of sample data so it validates