adding gridrenderer. saving state to bring in range bands changes.
Merge branch '0.8.0' of github.com:palantir/plottable into grid-renderer
merging range band changes.
merging range band changes.
working gridrenderer and demo.
adding unit tests for new interpolated color scale and updating comments.
removing unused domain changes. updating tests for clarity.
updating comments for padding parameters.
since scales are not extenting their own domains, we must do so ourselves.
updating gridrenderer constructor signature to accept all types of accessors.
merging after dans changes.
Merge branch '0.8.0' of github.com:palantir/plottable into grid-renderer
removing domain update methods from grid renderer now that that is handled by lazy autodomaining.
splitting out interpolated color scales to separate class to keep categorical scales separate.
adding unit test for grid renderer, making interpolated colorscale extend linearscale so its extents are computed properly.'
merge changes to scales.
updating for PR comments.
remove unnecessary newline.
Merge pull request #298 from palantir/grid-renderer

Grid renderer