release-0.3

This release updates the parser to add some new features:

• <= and >= may be used as comparison/boolean functions.
• ** is a POW operator (2 ** 3 => 8).
• ` is a backtick operator allowing command execution.

The backtick operator returns NULL on failure, otherwise a hash with two keys:

• stdout
  • The output hte command produced on STDOUT.
• stderr
  • The output the command produced on STDERR.

The backtick operator is demonstrated in examples/exec.mon

We've also added support for writing to files, and STDOUT/STDERR via the new standard-library function write.

• Example of writing to a file examples/file-writing.mon
• Example of writing explicitly to STDOUT or STDERR examples/stdout-stderr.mon

The standard-library was also updated to include support for reading directory-contents via the function directory.glob, as demonstrated in examples/glob.mon

Finally it is now possible to return an array of hash-keys via the new standard library function keys - which is demonstrated in examples/hash.mon