Update dice.rb

* Added FiveDice
* Moved some Dice methods to 5 Dice
Update dice.rb

Moved FiveDice to a new file
Create fivedice.rb

* Made Dice the parent of FiveDice
Update ruby-dice
Create fivedice_spec.rb
Update dice_spec.rb
Update spec_helper.rb

* Added RSpec-its dependency
Update ruby-dice.gemspec
Fixed require()
Update .travis.yml
Update score_sheet.rb
Update dice.rb
Added ScoreSheet#initialize

* Removed excess lines
* Removed excess ()s
* Fixed grammer error
Removed inspect alias

Signed-off-by: Zachary Perlmutter <zrp200@gmail.com>
Fixed FiveDice method
Fixed bugs

* Changed @score to @sheet
* Fixed spec files

Signed-off-by: Zachary Perlmutter <zrp200@gmail.com>
Fixed tests

Signed-off-by: Zachary Perlmutter <zrp200@gmail.com>
Merge remote-tracking branch 'origin/master' into Alternate-dice-idea
Simplified code
Merge pull request #2 from martimatix/Alternate-dice-idea

Alternate dice idea