New `activemq_console_bind_url` parameter

[guidograzioli]

The parameter allows to set an arbitrary value in the web console binding setting in bootstrap.xml.

   <web path="web" rootRedirectLocation="console">
       <binding name="artemis" uri="{{ activemq_console_bind_url }}">

activemq_jolokia_url and activemq_console_url are now re-defaulted to use such value.

Variable	Description	Default
activemq_jolokia_url	URL for jolokia REST api	{{ activemq_console_url }}/jolokia
activemq_console_url	URL for console service	{{ activemq_console_bind_url }}/console/
activemq_console_bind_url	The value to use in bootstrap.xml for web console binding	http{{ 's' if activemq_tls_enabled else '' }}://{{ activemq_bind_address }}:{{ activemq_http_port }}

No change to current configuration is needed, all default values remain the same.