Titaniumc version 0.581 is now available.  Significant changes since
the last public release include:

  * new features

    - use bulk transfers for Titanium array copy() operations in the
      Split-C back end.  To facilitate comparative timing, this can be
      disabled by setting $TI_NO_BULK_COPIES before running your
      program.

    - statically bind non-overridden methods.  It longer necessary to
      declare methods "final" in order to get fast static dispatch,
      except when writing code for a prebuilt, separately-compiled
      library.

    - improved support for non-gcc native C compilers via the "--cc"
      option.  As a tradeoff, though, the assumed C optimization flag
      is now "-O", rather than "-O9" in previous releases.  For more
      aggressive C optimization, use "--cc-flags".

    - if running with a suitable output terminal, display percentage
      progress information during cleanup.  There are some heuristics
      involved in defining "suitable", so let us know if you see weird
      or undesirable behavior.

    - more aggressive cleanup of temporary files even following
      errors.  As always, tcbuild option "--keep-intermediate" may be
      used to keep these files around.

    - new option "--nobcheck" disables Java array bounds checking

    - improved diagnostic output for supposedly concrete classes with
      unimplemented abstract methods

    - continued improvements to 64-bit cleanliness

  * selected bug fixes

    - intern literal strings at class initialization time, rather than
      building a new String instance each time the literal is used.
      This eliminates some gratuitous allocation and makes "==" of
      literal strings work as the Java specification requires.

    - implement missing Titanium array arity() method (PR #164)

    - fix code generation for certain nested optimized foreach
      statements (PR #99)

    - do not depend upon a Linux-specific extension to getcwd() (PR #7)

    - correct local qualification inference on copy and exchange of
      arrays of arrays

    - correct local qualification inference on programs that use
      ti.lang.Timer

    - more detailed statistics on qualifiers changed (and unchanged)
      by local qualification inference