FIXED: Remove notices for undefined constants and indexes
FIXED: Error messages reference the correct object
FIXED: Use string insensitive replace

Joomla always forces lowercase with its upload method
ADDED: Compatibility tags to manifest file
Merge branch 'notices'
FIXED: Update comment labels appropriately
FIXED: Update manifest to use Joomla 2.5
FIXED: Update copyright
FIXED: Update creation date in manifest
NOTICE: Reverted for some reason
Merge branch 'master' of https://github.com/subtext/com_slideshow