Implement the minimumSearchTermLength parameter.

The minimumSearchTermLength parameter allows users of elemicaSuggest to
specify the minimum number of characters that are required before a
suggestion is generated.
Update README w/ info on minimumSearchTermLength.
Merge branch 'master' into counting-sheep

Conflicts:
	dist/elemica-suggest.js
Merge pull request #11 from elemica/counting-sheep

Counting Sheep: Implement minimumSearchTermLength