Add File.{a,c,m}time
Merge branch 'master' into pr/797
style fix
untag working string chop
Add String#chr
adding myself to the authors
add Dir#exist? and Dir#exists?

they are just aliases
Add a production for "expr : BANG command_call"

Fixes #799.
Merge pull request #805 from jstepien/fix-bang-method-call

Add a production for "expr : BANG command_call"
Merge pull request #800 from sideshowcoder/string_chop_untagging

untag working string chop
Merge pull request #801 from sideshowcoder/add_string_chr

Add String#chr
Merge pull request #802 from sideshowcoder/add_to_authors

adding myself to the authors
Merge pull request #804 from sideshowcoder/add_dir_exists

add Dir#exist? and Dir#exists?
reorder
more readable
undo
Merge branch 'master' into type-specialized-attrs
Bring over the presizing logic.