add configure.ac and Makefile.ams
add gdal to configure.ac
add flags for pangocairo and c99
generate simple-tiles.pc using autotools
move CFLAGS and LDFLAGS to the right place
add math library
shuffle makefiles
add test suite
correct libs variable
Merge branch 'autotools' of git://github.com/adamtrilling/simple-tiles into autotools
move simple-tiles.pc to src
add test target to top-level Makefile
make tests use headers from source tree
need to make sure library is built before tests will run
add version checks for pango, cairo, and gdal
use version from configure.ac in pkg-config file
add files generated by autoreconf
add more files generated by autoreconf
remove unnecessary files
add exec_prefix because libdir needs it