Update to 2.0.6 release (1)
- trim Makefile headers
- remove files/patch-configure as it has been incorporated upstream
- Import a FreeBSD specific fix for shared mutex suppport from the
project SVN repo (2):
https://code.google.com/p/sphinxsearch/source/detail?r=3519
Feature safe: yes
Submitted by: (1) Portscout
(2) Denis <devzone.my@gmail.com>