Split out archive reads into a reusable function
Merge slackhappy/whisper with modifications

Closes pull request #10

Enforce merges to be strictly between two whisper files with the same
archive configuration and do a direct archive copy. This solves the
issue of time changing between archive copies.
add whisper-auto-update script

it's like whisper-update, but instead of specifying manual values,
you specify a callback function which gets executed to calculate
the new value
Improve rrd2whisper's handling of rrd files

Take into account the actual retentions in rrds and make whisper
archives similarly. Also allow selection of non-AVERAGE rrd archive
types
Actually display seconds in error message if lower precision archive does not cover time interval.
Print the Full Help message

Print the full help message instead of just the usage message without the options.
Merge pull request #19 from lambdafu/master

Fix precision error message
Merge pull request #16 from dieterbe/whisper-auto-update-script

Moved to contrib/ from original request
update print_usage to print_help for all whisper bin scripts
Merge pull request #23 from draco2003/patch-1

Print the full help message in tools