refactored all processors as aggregate processors
cleanup of docstrings within processors.py
updated broken tests to work with new processors format.
added additional processor tests
Adding additional processor test
adding docstrings to tests
adding reader tests
update reader tests with relative paths to test data
adding CSV test data
adding additional reader tests
optimizations to processors based on profiling
Updated processors to return itertools iterators
processors return itertools instances; update test cases
Cleanup processor docs and calling sigs
updating config
update README.md
Merge pull request #21 from mattmakesmaps/processor_refactor

Processor refactor
update docs
PEP 8 fixes in processors.py
decouple readers from processing flows