Show method table for foo( + tab at repl
Make foo( + tab method listings work for functions containing !
Clean up method table completion

Since we don't need to actually replace any text, it's easier to call
rl_display_match_list directly than to go through readline completion
Allocate methods list using malloc, in case there are many methods
Added support for method(\t syntax for operators
Fixed completion behaviour of functions that end in !
fix typo
sorry for another typo in the same comment.
Merge pull request #1 from ivarne/methods2

Added support for method(\t syntax for operators
Merge pull request #4361 from simonster/methods2

Show method table for foo( + tab at repl