Create standard build rather than wheel due to compat issues being wo…

…rked out. Skip cleanup to ensure we package third party dependencies

Merge pull request parlance#147 from parlance/feature/1.5

Swap to c++14 as required for PyTorch 1.5, this requires gcc>=4.7

Merge pull request parlance#81 from joshemorris/bugfix/get-path-trie

correct dictionary state logic around final states