The extension field is no longer case sensitive (thus only ignoring '.txt' and not '.TXT', for example)
Implement checkbox to ignore case sensitivity fpr the file name/content search box
Add previously commited checkbox to disable list, default check it and add a tooltip to it
Get rid of some useless double-checks
We now check all textboxes if they are not just whitespaces, null or empty instead of only checking for if they are not empty. Should fix some incorrect results showing up.
The extension field may no longer end with a semicolon (rather than the other way around).