Log Message:
pkgin 0.3.3 import from wip/pkgin-20100123

- Solaris 10 support
- Mac OS X support
- Added -l status flags
- autoconf support
- percentage redraw fix (jmcneill)
- variables cleanups (PKG_SYSCONFDIR, VARBASE) (sketch)
- auto-lookup for SUMEXTS, removed options.mk (sketch)
- opensolaris fixes (sketch)
- repositories.conf variables substitution (tuxillo)
- impact mutex (Johannes Hofmann)
- SunOS 5.8 support (Mikhail T.)

Plus many cleanups from stacktic@
- Replaced strstr's with str{n}cmp when possible
- #ifdef'ed PROVIDES
- Queries are now const chars
- Added -n (no-flag)
- Various memleaks fixed
- pkgname comparison fix
- Cleaned up trailing spaces
- Got rid of recursion !