New features introduced: hide empty brackets, alternative search result

[yild]

This fork introduce:

1. Option to hide 'unnecessary' bracket chars [] when 'description' field and user defined fields are empty,
2. Clickable search result titles that links to content to which attachment was attached, rather than to file/url itself, both article and/or category.

Both options are added to config.xml, default off.

ps. if i did everything correct this should work out of the box - i'm new to this github thing ;)

[yild]

bump

[yild]

bump @jmcameron