Blitz integration tests (rebased onto develop)



This is the same as gh-1533 but rebased onto develop.

----

```
./build.py -f components/blitz/build.xml integration 
```
now runs to completion.

Results:
```
...
===============================================
blitz.integration
Total tests run: 400, Failures: 93, Skips: 116
Configuration Failures: 27, Skips: 100
===============================================
The tests failed.

BUILD SUCCESSFUL
Total time: 2 minutes 14 seconds
```

cc @bpindelski