CFY-1306 support get_input in source/target operations mapping
CFY-1306 support get_input in source/target operations mapping
Merge branch 'CFY-1306-interfaes-get-input' of github.com:cloudify-cosmo/cloudify-dsl-parser into CFY-1306-interfaes-get-input

Conflicts:
	dsl_parser/utils.py
CFY-1306 fixed interfaces inputs validation
Merge pull request #20 from cloudify-cosmo/CFY-1306-interfaes-get-input

CFY-1306 support get_input in source/target operations mapping