Changing name of collect_indices.rb to values_at.rb in order to be reasemble Ruby's Array#values_at more.  Added support for ranges with hyphen, two and three dots notation.
Changing name of collect_indices.rb to values_at.rb in order to be
reasemble Ruby's Array#values_at more.  Added support for ranges
with hyphen, two and three dots notation.

Signed-off-by: Krzysztof Wilczynski <9bf091559fc98493329f7d619638c79e91ccf029@linux.com>

fuel-infra/puppetlabs-stdlib,HelenCampbell/puppetlabs-stdlib,puppetlabs/puppetlabs-stdlib,yadavnikhil/puppetlabs-stdlib,DavidS/puppetlabs-stdlib,jbondpdx/puppetlabs-stdlib