Fixing tests

Fixing bug in local linear regressions

Fixing nits in docs

Adding tests to travis config

Fixing bug in local ensemble when using external api connection

Changing tests and local PCA projections according to backend changes

Fixing bug in local deepnet predictions for regressions without numpy

Adding tests for the multidataset options

Fixing evaluations for timeseries

Fixing bug in export for fusions with weights and preloading in Fusion