Standardise file name and key name inconsistencies.

Signed-off-by: Craig Phillips <craig@craigphillips.biz>
Merge branch 'master' of github.com:cppl/skeleton_plugin_for_joomla

Conflicts:
	README.md
	skeleton/languages/en-GB/en-GB.plg_type_skeleton.ini
	skeleton/languages/en-GB/en-GB.plg_type_skeleton.sys.ini

Signed-off-by: Craig Phillips <craig@craigphillips.biz>