TLS support for boot2docker 1.3.0 and support for include pattern for tar used as docker context

* boot2docker 1.3.0 seems to require TLS, fixed url and added certificates and keys for dockerode to make a connection
* the start cluster command needs to set a content-type of application/json for it to work
* it is useful to use include patterns to reduce the size of the tar used as docker context (opted to use an include pattern rather than an exclude pattern since it should be a smaller subset of files)
* incremented version of plugin