Make slide colour a colour form field

Fix #18
Update changelog
Undefined variable fix when jQuery is being used
Update changelog and version number
Update google jquery to 1.10.2
First shot at a script.php file for social slider
Remove not needed colour form fields
Fix for new colour form field
Merge pull request #21 from wilsonge/development

Changes for version 1.3.3
Merge branch 'development'