Remove acinclude.m4

Nowadays, we put our macros in the m4/ directory; also, the AC_FIND_FILE
macro defined in acinclude.m4 was fragile and violated naming
conventions (and was hardly used anymore).

git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@14030 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd
Remove mmUnixBuild.sh

git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@14031 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd
Oops, fix OS X automated build

(Forgot to follow my own instructions....)

git-svn-id: https://valelab.ucsf.edu/svn/micromanager2/trunk@14032 d0ab736e-dc22-4aeb-8dc9-08def0aa14fd