minor: it appears Ruby 1.9 is embracing try_ notation
minor: for compatability with 1.9.2, #singleton_class no longer can take a block
minor: global lambda  can be used instead of ObjectSpace.reflect
minor: add #respond_to? as BasicObject exception
minor: Hash#to_proc takes response argument replacing #to_proc_with_response
bug: ObjectSpace is a module, not a class
minor: add core script knowself.rb
minor: removed opencollection.rb
minor: removed casting_hash.rb --being moved to new library
minor: deprecate hashbuilder.rb
OpenHash becomes more like OpenObject and OpenObject becomes bare bones
add lemon tests for binding and class extensions
chain accumulations
test_accumulate and resulting bug fixes
Range.at_rand() was too slow on core integers. They are used rather often so some optimization will not interfere.

"return" keyword is set everywhere to guarantee that unnecessary branches will not be executed.
minor: optimize Range#at_rand
minor: better docs for Enumerable#accumulate
Range#at_rand optimized for Fixnum/Bignum instead of Integer
major: moved all Ruby standard lib extensions scripts from more/ to std/.
deprecated BlankSlate (use BasicObject); also ansicode.rb is finally removed