Build system fixes

1. Fix the build order so "make -j4" works
2. Remove binaries from git tree
3. Add .gitignore file

.gitignore

@@ -0,0 +1,41 @@
+*.o
+*.lo
+*.la
+**/Makefile
+**/Makefile.in
+aclocal.m4
+ar-lib
+autom4te.cache/
+build/libtool.m4
+build/ltoptions.m4
+build/ltsugar.m4
+build/ltversion.m4
+build/lt~obsolete.m4
+compile
+config.guess
+config.log
+config.status
+config.sub
+configure
+depcomp
+.deps
+.libs
+.dirstamp
+src/config.h
+src/config.h.in
+src/location.hh
+src/parser/seclang-parser.cc
+src/parser/seclang-parser.hh
+src/parser/seclang-scanner.cc
+src/position.hh
+src/stack.hh
+src/stamp-h1
+test/regression-tests
+test/unit-tests
+ylwrap
+missing
+install-sh
+libtool
+ltmain.sh
+examples/simple_example_using_c/test
+test/benchmark/benchmark