Major Features

Replaced Elastijk with LWP::UserAgent.
- HTTP Proxy Support
- HTTPS (TLS) Support
- HTTP Basic Authentication
  - Username/password lookup via netrc and password commands, i.e. wrappers to password vaults/keychains
- All utilities added: --proto, --http-username, --http-password, --password-exec to take advantage of new features.
es-search.pl --with
- Subaggregations with --top, e.g: es-search.pl --top rule.id --by cardinality:host --asc --with host
  - "Top rule by least distinct host count showing the hosts"
es-graphite-dynamic.pl
- --prefix: override the prefix, useful for use with other collectors like Diamond and collectd
- --no-prefix: completely disable the metric prefixes.
Documentation updates and fixes.

Internal Overhaul

Replaced Elastijk/Hijk with LWP::UserAgent and encapsulated in App::ElasticSearch::Utilities::Connection
App::ElasticSearch::Utilities::Connection provides a wrapper for response handling to decode payloads passed back from Elasticsearch
HTTP::Request subclassed by App::ElasticSearch::Utilities::HTTPRequest to override the get/set content() methods to enable Elasticsearch's off RFC HTTP body content.
LWP::UserAgent::get_basic_credentials() monkey patched to call back to App::ElasticSearch::Utilities::es_basic_auth() which tries to be as magical as possible.
App::ElasticSearch::Utilities::es_basic_auth() added a callback for LWP::UserAgent::get_basic_credentials(). Using this method the es_basic_auth() function is only called when the server requires authentication.
es_pass_exec() added to lookup a password using a shell script to use a password manager to keep passwords safe.