added my (Jeff's) Project Euler solutions
Merge remote-tracking branch 'origin/patch-1'
reorganize level 2 ruby and write intro
tweaks and resources
change TOC to roadmap, number it
when to use a hash, improve options hash language
add project
intro classes and start asking questions
fix indents
fix indents 2.0
fix indents 3.0
fix indents for ruby bonus
fix indents for ruby bonus 2.0
fix indents for ruby bonus 3.0
update ruby in 100 minutes description
??
update arrays with resources and some new methods
add zetcode's ruby tutorial
add zetcode's objects section as a resource
add zetcode's datatypes as required reading