libotr 4.0.0

Version 4 isn't compatible with things in core that use 3.2.x.
node 0.8.24

Closes #144.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
Tomcat 6.0.37

Closes #134.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
ppl 1.0
mysql55: fix references to mysql formula
Subversion 1.7.10

Subversion 1.8.x no longer supports neon. Some svn users require neon
support to access certain kinds of WebDAV servers, so add 1.7.x
to homebrew-versions.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
hdf4: use depends_on :fortran
gcc: fixes for PowerPC and Tiger