Turn qtwebkit's developer extras flag on

Enables the Inspect contextual menu item which will bring up a
QWebInspector window.
Merge branch 'webcell-enable-dev' into 'master'
Warn when mashup is not found
Minor fixes to conda.sh script

Let's use 'set -e' and make sure absolutepathname calls don't fail.
Fixes failing mkdir call in conda.sh
Makes String accept unicode again

402c6d2d made String.translate_to_python() only accept 'str' objects,
raising on 'unicode'. This fixes it, although only ascii is safe at this
time.
Fixes imports in parallelflow/map.py
parallelflow: Fixes formatting of an error message
Removes 'nologger=True' from spawned_startup.xml

Removed because it breaks ParallelFlow.
Merge branch 'master' into 'remove-serialize-interface'
Removes serialize/deserialize from Constant
Removes serialize() calls from ParallelFlow