Fixed typos in commands
Merge pull request #20 from hason/commands

Fixed typos in commands
Update sample doc commands to ones that still work.
Loop shoulda been private all along.
マルチバイト文字列を、エスケープ無しで表示する。
Extract json_encode unicode fix into a utility class.

Only use options available to the current PHP version.
Don’t escape JSON slashes. Because ugh.
Whitespace cleanup.
Fix for `which` on systems that do dumb things.

Fixes #21
Fix a couple more `which` calls.

See #21
Fix autoloader path in psysh binary
Merge pull request #22 from matthieuprat/master

Fix autoloader path in psysh binary