close_to? works on Date, Time, DateTime
remove ParseTree and sourcify dependencies in favor of new ruby2ruby/ruby_parser
fix https://github.com/sconover/wrong/issues/22 (be kinder to RSpec)
remove silly vendored gems, and hopefully ignore them in the future
refactor: move details from Chunk to FailureMessage
tweak terminal width so exceptions wrap properly inside RSpec output
improve multi-ruby test framework
release version 0.7.0.pre1 (prior to full testing on all Ruby versions)
fix rspec test framework issues
bump version to 0.7.0
better close_to? documentation