* Bump version number in configure.ac to 0.2

 * Bump version number in configure.ac to 0.2
 * Move a few dir definitions in Makefile.am's do that autotools doesn't create empty directories
 * Uncomment AM_CONDITIONAL for TARGET_GENTOO which broke the build
 * Add missing introspect files to EXTRA_DIST in avahi-daemon/Makefile.am, makes
 distcheck pass again.
 * Remove the ugly archlinux specific -std=c99 hack
 * Replace it with a much more elegant test to see if rtnetlink.h will compile w
ith -std=c99 and disable it if it will not

git-svn-id: file:///home/lennart/svn/public/avahi/trunk@417 941a03a8-eaeb-0310-b9a0-b1bbd8fe43fe