Merge pull request #241 from anmcgrath/filter-menu-fix

Fix bug where default filters were not being loaded.

Merge pull request #239 from anmcgrath/prevent-on-sheet-readonly

Prevent actions when Datasheet IsReadOnly is set to true

Merge pull request #234 from anmcgrath/validators-fix

Fix validators not shifting on sort.

Remove wrap in selection menu

Merge pull request #214 from anmcgrath/add-use-autofill-option

Add option for using the auto-fill functionality.

Merge pull request #207 from anmcgrath/formula-bug

Fix formula evaluation bug

Only set cell values in bounded region.

Merge pull request #201 from anmcgrath/improve-formula-performance

Improve formula performance by using caching of computed values.

Merge pull request #197 from anmcgrath/formula-and-cultures

Better formula support for other cultures.

Merge pull request #195 from anmcgrath/json-serialization

Adds Json serialization through SheetJsonSerializer and SheetJsonDeserializer.