colons : in enum values cause declaration errors

[dimitri-yatsenko]

For example, in Jake's patch.Session, he declared

craniotomy_location=null    : enum('V1: 2.7-3 lateral, just anterior of lambda','S1: 3.2-3.5 lateral, 1.2-1.5 posterior (bregma)') # 

This throws an error because : is used to separate attribute name from the datatype.

[eywalker]

What's the status on this? This sounds like a rather annoying bug that ought to be fixed soon.

[dimitri-yatsenko]

Fixed in #72.