Type casting reference matrix fixed.
FEAT: added internal remove-char function for string datatype.
FIX: minor code improvement in insert-char function.
Update README.md

Synchronized the repository to add remark on compiling te console and a contribution section.
FIX: Useless lines deleted
TESTS: Call test for posix, draft
Merge branch 'master' of git://github.com/dockimbel/Red into call
TESTS: Experiments on call tests
Merge branch 'master' of git://github.com/dockimbel/Red into call
FEAT: Call, errors printed to stderr now.
FIX: Call, debug errors on stderr
FEAT: Improved print-error function
Merge branch 'master' of github.com:red/red
FEAT: print-error added to Red level
FIX: Call, windows uses getstdhandle instead of stdout, stderr...
FIX: Call, wrong mask for createfile (windows)
Merge branch 'master' of git://github.com/dockimbel/Red into call
FIX: Type checking and input size
TESTS: For integer!, add positive?/negative?,max/min,odd?/even?,complement
and power tests

TESTS: For logic!, add complement tests.
TESTS: For block!, add max/min tests.
TESTS: For char!, add max/min, odd?/even? tests.
FEAT: Enable POWER action! in boot.red
FEAT: BLOCK! comparasion now compare elements's datetypes when their types
are not the same.
FEAT: minor refactor for decode-utf8-hex in string.reds
FIX: Wrong result when compare empty string! and block!
FEAT: Use literal array to fill the escape tables

This change will squeeze 1KB for the generated executable file.
FEAT: extended SIZE? function to return the length of a literal array.