Merge pull request #26 from rajthilakmca/0.5

Add components list method
removed the code for inflated. to-do fix later.
changes the method get_assembly to get_one_assemblies in test code.
version changed to 0.18
Merge pull request #27 from indykish/0.5

0.5
Merge pull request #28 from indykish/0.5

version changed to 0.19
Add app request