Info: Clean up some info files.

Get rid of RELEASE_NOTES since we no longer do releases, update some of the
information in README, and update the date in LICENSE.

src/python/m5/main.py

@@ -61,8 +61,6 @@ add_option('-C', "--copyright", action="store_true", default=False,
     help="Show full copyright information")
 add_option('-R', "--readme", action="store_true", default=False,
     help="Show the readme")
-add_option('-N', "--release-notes", action="store_true", default=False,
-    help="Show the release notes")
 
 # Options for configuring the base simulator
 add_option('-d', "--outdir", metavar="DIR", default="m5out",
@@ -207,13 +205,6 @@ def main():
         print info.README
         print
 
-    if options.release_notes:
-        done = True
-        print 'Release Notes:'
-        print
-        print info.RELEASE_NOTES
-        print
-
     if options.trace_help:
         done = True
         check_tracing()