Add iPython Notebook tutorial about hyperparameter optimization using Jobman
Few changes to the tutorial
make travis error and not fail when jobman and Theano install fail.
Commit for ticket 255
adding unit test for dbm_demo
2nd attempt at making dbm_demo unit test
dynamically adjust plot width for legend
Merge remote-tracking branch 'central/master' into plot_monitor_legend_clipped
pep8 changes and removing try,except clauses (including from test_sdae.py)
Added mlp tutorial unit test
Used autopep8
Added skip_if_no_data
Ordered prompt numbers
Fixed string concatenation
Reverted test_autoencoded.py to its original form

To fix in another pull request
doc of FixedVarDescr
get rid of data_specs field that PL created but did not support
removed old imports, added skip_if_no_data
Updated mlp test unit
documented SumOfCosts.get_fixed_var_descr