Merge pull request #6 from nega0/master

New formula: rdmc (for maximum AMANDAness)
New formula: slalib (secret C port)
Find gmp.h reliably

even when HOMEBREW_PREFIX/include is not in the default header search path
(e.g. in linuxbrew)
Much simpler
New formula: boostnumpy
Flip boostnumpy back to trunk
Update boostnumpy to 0.1.0
Declare dependencies.
New formula: ERFA 1.0.1

Essential Routines for Fundamental Astronomy
New Formula: PAL alpha

Positional Astronomy Library, a SLAlib replacement
New formula: HEALpix 3.11
Merge branch 'master' of git://github.com/jvansanten/homebrew-icecube