Started test refactoring for general-graph, uses parameters now whenever possible
Further refactoring of test for general-graph
Merge branch 'devel' of github.com:triAGENS/ArangoDB into devel

Conflicts:
	js/common/tests/shell-general-graph.js
Further refactoring fpr general graph
Merge branch 'devel' of github.com:triAGENS/ArangoDB into devel