1.1.2

Update

Internally-used ply library is updated for avoiding unessential recompilation.

Test environment

Mac OSX 10.13.5

Python 3.7.0
Python 2.7.15
Icarus Verilog 10.2

Ubuntu 16.04

Python 3.5.2
Python 2.7.12
Icarus Verilog 0.9.7