Print request body when log-exchange flag is true

Fixes: bug #1204641

Change-Id: Ie757cd024f5e4376410cc9cf9dd31b77adc836f7
Improvements of integration tests

* Added test for simple check of Oozie;
* Each Swift container which is created with tests has its id;
* Tests have improvements in code.

Change-Id: Icd61c5904889deabc1a8b2607965dad5e1c97224
Replace copy-pasted sphinx theme with oslo.sphinx

Change-Id: I3c78753ea5d800b67853af96cc155707cdbf7755
Merge "Print request body when log-exchange flag is true"
Merge "Replace copy-pasted sphinx theme with oslo.sphinx"
Merge "Improvements of integration tests"