Create special method call instruction
It's mine, mine, all mine, ha ha ha ...
First version of pure stack machine
Starting to enforce stack purity
Cleanup code for do/load/loadfile

Load/loadfile does not yet handle source/mode/env properly.
Change method call name to methodcall

There are now method and methodcall, similar to function and
functioncall.
Create framework for handling require and modules

For now it contains very little, but it will grow.
Fix dofile description
Improve block handling
Split operator functions in 2 parts, without then with meta functions

This allows an attempt at doing a faster call where we assume it will
work without first fixing stack in state which might not be used.
Stack was not properly fixed before.
Fix generation and handling of file compilation errors
Rename library modules to luerl_lib_XXX
Fix getmetatable/setmetatable to obey __metatable
Fix case for output of %x and %X
Fix length/1 so it returns single value from metamethod
Change luerl_lib:is_true_value/1 to boolean_value/1

This is a better name as it does return the value as a boolean.
Add concat as callable erlang function
First version of require and package module

This is an alpha version. It works but is incomplete and data is
unprotected. Still can't reconcile this execution with documentation.
Cleanup export declarations
Clean up package code

It now seems to work as it should. Just had to find out that loadfile
doesn't load a file (which it does) but returns a "loader".