Added support for additional HTTP verbs

Support HTTP verbs other than "GET"
Also added support for additional HTTP headers and HTTP Basic
Authentication
use hi.conf instead of a long argument list
Update changelog
Add a test for HTTP Basic Authentication
Add a test for configuring a different HTTP method
Add a test for configuring HTTP request headers
Add a test for configuring a request body
Add TLS support to the sandbox manager utilities
Merge pull request #718 from mozilla-services/tls_sbmgr

Add TLS support to the sandbox manager utilities
Issue #717 Move sandbox construction out of Init()

Since decoders are no longer in shared pools and are now embedded
and created on demand the actual initialization should be delayed
until its runner is being started.
Merge branch 'more_http_input_options' of github.com:bartleusink/heka into bartleusink-more_http_input_options

Conflicts:
	CHANGES.txt
	docs/source/configuration.rst
Change to a hyphen so the UI can wrap long names
Merge branch 'dev' into issue_717