* Updating test matrix for 7.6 + removing oss for now.
* Resolving 7.6.0 docs issues
* Updating ML docs
* Bumping version following doc fixes
* Change ExternalMLModel to ImportedMLModel
* Refactoring of plotting + fixes for multiple charts
Updates to plotting inline with pandas 0.25.3
Enables plotting of multiple histograms on the
same figure.
* Fix to setup.py to allow submodules
+ reformat of code and better Series.hist docs
* add support for series plotting
* update docs for series plotting support
* add tests for series plotting
* fix typo
* adds comment to ed_hist_series
* adds support for series.value_counts
* adds docs for series.value_counts
* adds tests for series.value_counts
* updates keyerror language
* adds es docs as an external source
* adds parameters for metrics and terms aggs
* adds 2 tests to check for exceptions
* explains the size parameter
* removes print statements from tests
* checks that es_size is a positive integer
* implements assert_series_equal
