Request sign modification
Verify server method
Merge pull request #16 from codio/versal

Refine anon and versal changes
add method for fetch information about container from pier
Merge pull request #17 from codio/3528_paid

Add method for fetch information about container from pier
add method to read me
Merge remote-tracking branch 'origin/master' into education

Conflicts:
	lib/container-manager.js
	lib/project-manager.js
	lib/project-structure-manager.js
	lib/request.js
	lib/ssh-manager.js
	test/container-manager.spec.js
	test/project-manager.spec.js
	test/project-structure-manager.spec.js
	test/request.spec.js