Naming PAST-pm compiler tool chain

[Allison Randal]

How about "Partridge"? It starts with 'p', it's a bird, and brings to 
mind "Partridge in a Pear Tree" which goes with the theme of tree-based 
compiler tools (PGE outputs trees, TGE munges trees). We can pretend we 
named it after Kurt Partridge for his work on ZPL or Andrew Partridge 
for his work on portable, parallel Haskell compilers.

Allison