Backport #975 from trunk:
Warn the user if he/she recalls a sample with EXPERIMENTAL features.
Also, print the EXPERIMENTAL status when listing the samples.

NB: even it is not purely a fix backport, it is still very important that the user gets warned about the EXPERIMENTAL status of the samples.

/branches/1.2/scripts/showSamples.sh | 17 14 3 0 ++++++++++++++---
/branches/1.2/samples/samples.mk | 12 12 0 0 ++++++++++++
2 files changed, 26 insertions(+), 3 deletions(-)

 # powerpc specific configuration file

 config ARCH_powerpc

     select ARCH_SUPPORT_ABI

     select ARCH_SUPPORT_CPU

     select ARCH_SUPPORT_TUNE

     help

       The PowerPC architecture, as defined by:

         http://www.ibm.com/developerworks/eserver/articles/archguide.html