Flask truncation of overwrite floats

[dhblum]

When writing overwrite values in /advance, the flask api in restapi.py seems to truncate floats, as they are converted to unicode by default. For example, for a particular timestep when running examples/python/testcase1_scenario.py:
Python controller sent:
{'oveAct_u': 63.82314159145608, 'oveAct_activate': 1}
Flask api sent to testcase.py:
{'oveAct_u': u'63.8231415915', 'oveAct_activate': u'1'}

On the surface this is not too much of an issue, but the rest api of boptest-service does not perform this truncation, and testing has revealed this makes a small numeric difference for the example feedback controllers for testcase1 and testcase3, causing unit tests to fail upon syncing boptest-service with the latest master branch.

This issue proposes to fix the Flask api by specifying that the overwrite value arguments in /advance be strictly defined as floats (using type=float option when defining the arguments of the api request here), which then removes any truncation from the api and delivers to testcase.py exactly what is expected.

[dhblum]

Being addressed in #536.

[dhblum]

Closed by #536.