Lorem randomization (resolves #1)

[thedeeno]

This patch makes it easier to generate random text (and resolves #1). The following Lorem methods (the plurals) can accept a range or array in addition to the standard integer for the count parameter. When a range or array is given, some useful randomization effects can be achieved.

# extended methods
Lorem::characters
Lorem::words
Lorem::sentences
Lorem::paragraphs

# usage - random number from range
Lorem::words(2..5) 
> 2, 3, 4, or 5 words

# usage - random number from set
Lorem::words([1, 4, 6]) 
> 1, 4, or 6 words

Additionally, this patch makes it easier to bootstrap the test env (which I had to do by hand the fist time).

Tests included and passing.

[garethrees]

+1 for this. Was just about to add an issue similar to #1

[stympy]

Merged. Thanks!