* [VERILOG] VPI Mem Interface/ VPI MMap

* fix test issues

* [VERILOG] Basic Verilog Testflow

* fix build

* fix the comment

* fix lint in verilog

* [ARITH/VISITOR] Modular Analysis, ExprFunctor, StmtFunctor

* retrigger

* [IRFunctor] Migrated CodegenC

* [IRFUNCTOR] Migrate CodeGenLLVM

* [IRFunctor] Migrate canonical

* [IRFunctor] Migrate vectorize

* [IRFunctor] migrate CodeGenStackVM

* [CODEGEN] CUDA/OPENCL pipeline complete

* Hide TVMType by str in frontend

* fix c_api bug for mac

* update travis

* [LANG] Change Schedule->Stage, Use Schedule for global schedule

* add numpy as dep

* add numpy installation, temporary disable osx

* Setup Travis CI

* add source

* fix source