Reference documentation for `abs` and `add`
Merge branch 'develop' into reference
Added reference docs for abs, add, divide, multiply, subtract
Fixed broken links
Updated examples
Added reference docs for ceil, fix, floor, and round
Added reference docs for cube, exp, pow, square
Created a simple docgenerator to generate references. It's too boring to do manually
Some fixes in the docgenerator
yihaa, the first automatically generated reference docs for functions
Updated index and getting started
Merge branch 'develop' into reference

Conflicts:
	gulpfile.js
	lib/function/arithmetic/round.js
	package.json
Merge branch 'develop' into reference

Conflicts:
	lib/function/arithmetic/exp.js
Added tests checking that the expression parser throws one-based IndexErrors.
Upgraded to decimal.js 2.0.1
Merge pull request #3 from josdejong/develop

Merge pull request #163 from rjbaucells/develop
Documented new option epsilon for comparison. Changed default value to 1e-14
Merge remote-tracking branch 'origin/develop' into develop
Documented complex polar coordinates
Fixed comparison functions not applying option `epsilon`