Merge pull request nexpy#185 from rayosborn/v0.10.12

v0.10.12

Merge pull request nexpy#182 from rayosborn/fix-interpolation

Use default interpolation if cached value unavailable

Update nexusformat requirement

Merge pull request nexpy#139 from nexpy/v0.10.9

Bug fixes and enhancements.

Merge pull request nexpy#137 from rayosborn/v0.10.8

Minor bug fixes and enhancements

Update version number

Merge pull request nexpy#134 from rayosborn/v0.10.6

Add keyboard shortcuts

Merge pull request nexpy#133 from rayosborn/v0.10.5

Miscellaneous bug fixes and enhancements

Merge pull request nexpy#132 from rayosborn/v0.10.4

Pauses slideshows when an exception is raised.

Update required version number for `nexusformat`