use FasterCSV gem only for ruby 1.8
update csv bridge
remove jrails and its usage
add test-unit to Gemfile
fix syntax issue
remove extraneous require calls
add 1.9.3 travis testing
add default encoding
monkey patch fixnum to include encoding method
add example of monkey patch usage
fix test to handle rounding differences

ruby 1.8.7 and 1.9.3 appear to round differently
abstract dependency on generator
Merge branch 'ruby-1.9.3-upgrade'