(WIP) Working on putting the ratios into the Nerd codebase.
[WIP] More work on refactoring.
[WIP] Slowly getting rid of the compiler errors.
[WIP] - Work on strings and tables.
[WIP] Code now compiles but doesn't work.
[WIP] Reach prompt.
Added -e command option to shell.

This can now execute code on the command line.
More fixes to the refactoring.
Fixed bugs in environment and symbol functions
Merge branch 'refs/heads/refactor' into development

Conflicts:
	Nerd/src/Core/NeLibCore.c
	Nerd/src/Core/Nerd.c
	Nerd/src/Core/Nerd.h
Removed setglobal!
Fixed searching of symbols.
Upped version to 0.21

This version includes ratios, tables, a faster lookup in environments.