Admin only search members by last IP.

Updated to work with 3.4.06

Replaced Blackcode IP tracing engine, they're out-of-business.

Since the new IP tracing company apparently didn't search outside the USA, I've replaced them too.

1.4: Rewrote sorting and filtering routines to enable ascending/descending sorting, etc.

1.41: Fixed an issue with drop-down menu.

1.42: Corrected drop-down variable to make sorting functional again.

1.43: Fixed a MySQL reserved character issue, edited four variables, changed display font for continuity.

1.44: Converted PMs to a conditional clause.