Cleanup to_formals a bit
Move var_eq and var_hash out of the variable_set function
* This halves the amount of time spent in the variable_set function
Fix the check for caching in mutated_vars
Big speedup for loading racket/base
Again, make Racket play nice with space-containing paths

We had that already...
Handle quoted paths in source code.
Handle improper lists better.
Handle single flonums (sort of).
Fix stdlib in mcons mode.
Clean up ModTable
Merge branch 'master' of https://github.com/samth/pycket
Handle #%declare. Requires Racket HEAD.
Fix issue with ModTable lookup after translation
Merge branch 'master' of https://github.com/samth/pycket
rename struct.py as to not collide with python
Missed one of the conversions from 'struct' => 'values_struct'
Merge branch 'master' into structs