fixed readme
changed widget_init function name
added FAQ to use the shortcode directly in php
fixed slider script output: removed obsolete comma at the end of the attribute list

This fixes the slider in IE 6 and 7.
fixed whitespaces
reorganized some css styles
removed unnecessary css styles for slider
used ascending list ids instead of random number
added an implemented the shortcode attributes "link_orderby" and "link_order"
preparation for version 0.4.1
Merge branch 'develop'