Plugin source location: <serge_root>/lib/Serge/Engine/Plugin/parse_hash.pm
This plugin is used to parse associative arrays (aka hashes) in 'key' => 'value'
format which are used in Perl, PHP, and Ruby. Each key-value pair must be on its own line.
Limitation: both key and value need to be encased in a single quotation mark symbols. Double-quoted strings or any other language-specific means to denote a string are not supported; symbols (in Ruby) or barewords (in Perl) are not supported, too. Neither supported are multi-line strings.