#7 Introduced picocontainer as a lighweight DI engine.
feat: #7 instantiating BuilderRegistry using picocontainer.
fix: #7 removed unused imports.
fix: removed duplicated code.
#7 feat: BuilderRegistryConfigTest
#7 feat: added missing unit tests.
Merge pull request #14 from jtgrabowski/custom_task_registration

Custom task registration