Simple clean up
Merge pull request #18 from danielsoro/simple-clean-up

Simple clean up
Avoiding 'is' prefix as method doesn't return boolean
Aside from 'validate', 'check' would be another acceptable alternative.
[maven-release-plugin] prepare release crest-1.0.0
[maven-release-plugin] prepare for next development iteration
Revert "[maven-release-plugin] prepare for next development iteration"

This reverts commit bce982c4410a3467ded17109932acdff7b37b98b.
Revert "[maven-release-plugin] prepare release crest-1.0.0"

This reverts commit 6cab15b3090984d22b5de9a79e1a838ac343c8d0.
[maven-release-plugin] prepare release crest-1.0.0
[maven-release-plugin] prepare for next development iteration
[maven-release-plugin] rollback the release of crest-1.0.0
'rsync -del' and 'rsync --del' are two different commands.  We cannot let '-del' imply '--del'

See:
 rsync -h | egrep '( -[del]|del )'
  -d, --dirs                  transfer directories without recursing
  -l, --links                 copy symlinks as symlinks
  -e, --rsh=COMMAND           specify the remote shell to use
      --del                   an alias for --delete-during
Fixing ManyOptionTest for -del vs --del (-del is equivalent to -d -e -l)
Modifying helptest to fix formatting issue when first value on @Option is a single letter
Fixing help text display
Re-adding removed files (regenerated)
#20 supporting already prefixed options