More portal framework changes:
support for page command bars in page extension
ordering across layers on page
abstract discovery UI pages
improvements to open editor asap and defer updates if needed
# about.mappings
# contains fill-ins for about.properties
# java.io.Properties file (ISO 8859-1 with "\" escapes)
# This file does not need to be translated.
# The following should contain the build version.
# e.g. "0=20020612"
# This value will be added automaticaly via the build scripts
# 0= build number
# 1= symsee build number
0=@buildNumber@
1=