TESTS: start of lexer-test.red
FEAT: added ATAN2 native support.
FIX: missing RPi compilation target in help page.
Merge pull request #895 from Oldes/atan2

FEAT: added ATAN2 native support.
FIX: uncommented the right docstring for the ROUND mezz function.
FEAT: preliminary support for objects compilation.

Just initializing the new branch, still a work in progress.
FEAT: object value runtime counterpart created by compiler.
FEAT: minor code reduction.
FEAT: implemented FIND action for objects.
FIX: changed FIND return value on not found words in objects to NONE.
FEAT: implemented SELECT action on objects.
FEAT: added class ID field support to objects.
FEAT: implemented fast-lookup for object path accesses (simple cases only for now).
FIX: issue #902 (Access violation on PARSE of URL!)
Merge pull request #904 from qtxie/issue-902

FIX: issue #902 (Access violation on PARSE of URL!)
FEAT: object words (deep) read access enabled using path syntax.
FEAT: support for calling nested functions from within the wrapping object.
FIX: various fixes for deep object path read access compilation.
FEAT: objects path write access added.
FEAT: support for SELF keyword in object contexts.
FEAT: smarter objects local words binding.
TESTS: add compiler object tests