Removed the coreHome setting from the module build files. Replaced with
an ANT environment var.
Added MA_HOME var, and deprecated M2M2_HOME.
Added logging of failed login attempts.
Moved ping DWR to BaseDwr so that it is available from anywhere.
New helper class for async processes spawned by DWR. Maintains context
of the original DWR request.
Changed zip target in build to ensure that *nix scripts have crlf
characters replaced with lf.
Allow MA to upgrade its own core by detecting the presence of a core zip
file in MA_HOME.
Updated release notes.