Moved dot graph functions into new module DotGraph
Encapsulated printing of dot graph into new module method print_graph
Added parameter parsing for only dumping one IR pass
delete of various require 'jruby' s. Now a single require at the beginning of
the script
moved root AST node to usage of the node
Correct naming of ast node in usage message
Moved IR handling to its usage
new ir_setup method for setting up ir
checking for combination of -p and -i and implementation for -p
Integration of Pretty printer (-f) for IR prepending scope names
Renaming of ir_instrs to pretty_ir
Prepending scope name
Fancy line numbers in IR pretty printer
Forgot to return the correct item
deactivating -f as default
Correct alignment of line numbers
Merge branch 'master' into komax_ast_tool_rewrite
add checkstyle for ext/ripper
Merge pull request #876 from komax/komax_ast_tool_rewrite

bin/ast Add of IR Debugging Features
Bump up JVM memory for javadoc generation.