added filler.json
In VM tests, check only if an exception occurred if an exception expected (no post state and output checking)
Special handling for constructor.
Fix memNeed overflow
Merge pull request #520 from wanderer/develop

added filler
Merge pull request #527 from imapp-pl/pr-changes

Check only if an exception occurred if an exception expected
Merge pull request #528 from chriseth/sol_constructor

Special handling for constructor.
Merge pull request #530 from CJentzsch/bugfix

Fix memNeed overflow