EC2 crash dump tool instead of kdump.

• ec2dump is an implementation of crash dump for an environment which cannot use kdump.
• Don't use this tool for your production environment. This tool is just only for test now.
• To analyze core dump made by this tool needs to modify crash program.
  Patch(crash-7.0.7.vol.patch) is from:
  http://www.4tphi.net/~awalters/dfrws2008/volcrash-4.0-6.3_patch

Kenta Tada
e-mail: ktagml@gmail.com