Integration test review (rebased onto develop)



This is the same as gh-1111 but rebased onto develop.

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Fix few broken integration tests (still some broken ones) see https://docs.google.com/spreadsheet/ccc?key=0ArfUkRuStsCEdDNxcjY1SThOR3hMVDk2WVJFS3dXaXc#gid=2

To test that PR run:
```
./build.py -f components/tools/OmeroJava/build.xml test -DTEST=integration/AdminServiceTest

./build.py -f components/tools/OmeroJava/build.xml test -DTEST=integration/chgrp/RenderingSettingsMoveTest

./build.py -f components/tools/OmeroJava/build.xml test -DTEST=integration/chmod/RolesTest
```