Add .gitginore: Ignore files that are generated on build

A "git status" after building now comes back clean.

.gitignore

@@ -0,0 +1,45 @@
+*~
+*.lo
+*.1
+*.o
+*.tmp
+
+Makefile
+Makefile.in
+
+/ABOUT-NLS
+/autom4te.cache/
+/build-aux/
+/config.h
+/config.h.in
+/config.log
+/config.status
+/configure
+/encfs.spec
+/encfs/.deps/
+/encfs/.libs/
+/encfs/encfs
+/encfs/encfs-man.html
+/encfs/encfsctl
+/encfs/libencfs.la
+/encfs/makeKey
+/encfs/test
+/libtool
+/makedist2.sh
+/stamp-h1
+/aclocal.m4
+
+/po/Makevars.template
+/po/POTFILES
+/po/remove-potcdate.sed
+/po/Makefile.in.in
+/po/Rules-quot
+
+/m4/*.m4
+!/m4/ax_boost_base.m4
+!/m4/ax_boost_filesystem.m4
+!/m4/ax_boost_serialization.m4
+!/m4/ax_boost_system.m4
+!/m4/ax_boost_system.m4
+!/m4/ax_ext_have_lib.m4
+!/m4/ax_pthread.m4