Add Grunt to make a bundle
Standalone Formula
Merge branch 'ADD'
Merge branch 'master' of github.com:CrowdProcess/formula.js
return #NUM! when POWER has a negative base and fractional exponent
fix conflict
Merge remote-tracking branch 'origin/error_handling'
check for isNaN too
merge upstream
Merge remote-tracking branch 'origin/flatten_values_in_IRR'
Merge branch 'flatten_ranges'
Merge branch 'master' of github.com:CrowdProcess/formula.js
major refactoring starting
remove expose.js
remove dependencies not needed anymore
add coveralls reporting
badges, reason for forking
correct branch in codeship, mixed up coveralls and coverage makes
some space
add default errors