Merge pull request #71 from tsloughter/master

add erlydtl namespace
Add support for custom templates in subdirectories

- Includes tests for templates and their application
Merge pull request #72 from rebar/template-tests-subdirs

Add support for custom templates in subdirectories
Add release-structured compiling tests
Merge pull request #74 from rebar/add-compile-tests

Add release-structured compiling tests
remove script that triggered now removed retest tests
Merge pull request #75 from talentdeficit/remove_config_script

remove script that triggered now removed retest tests
Merge pull request #76 from tsloughter/master

Small release fix and new plugin loading
update plugin install code