adding field for glossary extension in questionViews
adding glossaryText field in {}Question classes
more view inflators for secondary text field
new layout for star_rating questions with glossary extension
new layout for {}questions with glossary extension
adding onClick methods in {}QuestionsViewAdapter to allow switching glossary on and off
Merge branch 'develop' of https://github.com/daydreaming-experiment/app into feature/glossary
First batch of empty classes to fill
Move classes around, starting reorganization, boilerplate fill
Start better hierarchising classes
Move some functionality of db.Question to separate classes
Continue great refactor: working on storage backend

Storing to database is greatly simplified: we only store in database
elements for which we need SQL-style query (typically probes and
locationPoints, where we want to be able to get all pending probes, or
finished probes, or collecting locationPoints). But, we only store in
SQL fields what we need to search. The rest goes in a string containing
the JSON representation of the object.

Second, we will also do something similar for everything stored in
sharedPreferences: instead of storing individual values, we'll directly
store the objects as JSON and reload them on app startup. That way we
don't need to write all the getters and setters double (one for the
original class and one for the storage wrapper).
Revert previous deletions in ParametersStorage
Do proper revert of ParametersStorage
Fix probeService
Fix repercussions of fixing ProbeService
PollService is now ProbeService
Further mega-refactoring: building sequences is done

Next steps are:
* reworking the parameter storage layer to accept future grammar v3
* finish implementing all the background classes with a lesser grammar
  v3
* rework the views layer to work with new background classes
* augment grammar v3 to accept multi-page questions and conditionals
Merge branch 'develop' into feature/glossary
Merge tag '0.16' into develop

* Enhancements
  * [#124] Add a Credits screen on the Dashboard
  * [#125] Use grammar v2.1
  * [#155] Updated UI for when the parameters are loading in the Dashboard
  * Part of [#116]: started reducing first launch (tipi questionnaire has disappeared for the moment)
* Bug fixes
  * [#145] No space between "Experiment is" and "Running" on Dashboard