acumos v0.3-0

• add composeFromSource() and pushFromSource() functions, enabling
  respectively to compose and to push a bundle from an R file (considered
  as the component source) in which all the functions and auxiliary
  objects needed to compose the bundle are defined.

• change push() to look up and include in the POST request a potential
  component.R file contained in the bundle.

acumos v0.2-8

• add create, license and headers parameters to push().

• change the meaning of ... in push() to supply any additional
  elements for body of the POST request. This allows optional
  parameters to be added to the onboarding service.