Added .gitignore to repo.
Get rid of acinclude.m4 shipped macros and use a m4 subdirectory instead.
Fix autotools deprecation warning.
Add empty m4 subdirectory.
Merge pull request #3 from LibVNC/autotools-fixup-revisited

Autotools fixup revisited
Merge branch 'master' of https://github.com/libvnc/x11vnc

Conflicts:
	configure.ac

- Still missing AM_MAINTAINER_MODE fix.