Going toward Red runtime completion.
FEAT: added an offset argument to alloc-series function.
TESTS: updated allocator tests for new alloc-series function spec.
FEAT: added preliminary datatypes wrapper functions.
FEAT: removed macro-defs.reds, no longer needed.
FEAT: added integer! support in paths.
FIX: lexer patched to allow digits as first character in nested path expressions.
FEAT: [lexer] added support for get-word! values in paths.
FEAT: [lexer] added integer! support in paths for non-initial element.
FEAT: accept source code in loaded format as input to the Red/System compiler (required for linking it to Red compiler).
Merge branch 'master' into v0.3.0
FIX: improved path with namespace prefix resolution in WITH block.
FIX: enumeration resolution in contexts improved.
FIX: symbols resolution in sibling contexts under parent context improved.
FIX: improved namespace resolution for paths in WITH blocks.
FEAT: added HALT macro
FIX: allow redefining global function names in a context.
FEAT: system/words/* prefix extended to handle all kinds of global context elements (including functions).
FIX: badly named imported function argument.
FEAT: function! pointer dereferencing support implemented.

Usage:

    <name>: as function! [<spec>] <value>    ;-- define the function! pointer

    <name> <arguments>                       ;-- dereference the function

<value> needs to be a 32-bit integer
FEAT: extended ALIAS to support function! aliasing.