commit to remove FFTW (will be upgraded to v3.3.4)

git-svn-id: svn://dasher.wustl.edu/tinker@61 9dbd3ec4-0870-4ad8-bd6a-181c4f7deb04
upgrade FFTW to v3.3.4

git-svn-id: svn://dasher.wustl.edu/tinker@62 9dbd3ec4-0870-4ad8-bd6a-181c4f7deb04
full upgrade of FFTW to v3.3.4 (second commit)

git-svn-id: svn://dasher.wustl.edu/tinker@63 9dbd3ec4-0870-4ad8-bd6a-181c4f7deb04