Merge pull request #11 from mattmakesmaps/development

Merge of Devlopment
Merge pull request #14 from mattmakesmaps/development

Development
Merge pull request #15 from mattmakesmaps/development

Development
Merge pull request #16 from mattmakesmaps/development

adding travis config
Merge pull request #17 from mattmakesmaps/development

update readme with Travis CI
Merge pull request #18 from mattmakesmaps/development

update docs
Merge pull request #19 from mattmakesmaps/development

update docs
Merge pull request #20 from mattmakesmaps/development

update docs
decouple readers from processing flows
refactor and document ReaderCSV, update unittest
Refactor ReaderCensus; fix broken tests
updated docs in core.py
adding combine data processor
Implement value hash combination processor
update non-running tests; add test data; create combine processor test
Merge pull request #22 from mattmakesmaps/multi_reader2

Merge multi_reader2 branch into main development branch.
Merge pull request #23 from mattmakesmaps/master

Merge master into development.