Adding the ability to create users without a password.
Change connection_limit default to string, Puppet 2.6 can't parse negative ints
Pass only arrays to Puppet::Util.execute() for Puppet 2.6 compatibility
Enable hasstatus for EL and Puppet 2.6, to detect running server
Add create_resources to fix Travis CI failure on Puppet 2.6
Merge pull request #162 from domcleal/pp26-fixes

Three Puppet 2.6 fixes
Merge pull request #158 from harbulot/user_nopassword

Adding the ability to create users without a password.