Pulling BigOJob into new file

Mimicing changes being made to Benchmark::IPS, pulling BigOJob into own
file.
Remove code from BigOJob that's now handled by IPSJob
Create easy way to gather all the sizes from an incrementor, update the way Entries are created
Add BigOReportList
Add ability to create chart of the data
Update dependencies based on semantic versioning
Incrementer should always return an integer
Initialize @logscale in BigOReportList and add getter
Add Gemfile, default test
Add Travis CI
Add require 'benchmark/ips' to bigo.rb