Fixed missing research output abbreviation & fullname when creating a plan

Merged DMPRoadmap V2.1.2

Added selectable ResearchOutput Type to ResearchOutput form

Renamed ResearchOutputs columns

Datasets has been renamed as Research outputs

Fixed plan visibility answered questions count

If main dataset is not exported, common answers should be exported

Fixed plan copy for plans with datasets

Deactivated CSV & text export

Datasets integration

Users can now choose one or multiple phases when exporting a plan

Solved an issue with static page when user is not logged in

Fix for a bug in the StatCreatedPlan model that was causing the following error ...

File /opt/src/dmponline_dev/app/models/stat_created_plan.rb line 24 in by_template
    Show 9 non-project frames
    File /opt/src/dmponline_dev/app/controllers/stat_created_plans_by_template_controller.rb line 14 in index

Added a check for variable details presence in the by_template method in app/models/stat_created_plan.rb

Complete merge Development -> Master

Added code to make Search functionality case-insensitive. ...

Changes:
   - relevant models with :search scope updated with lower casing  of the column
     values and the search parameters.
   - fixed all rubocop warnings on the changed models except
     "Style/RedundantReturn: Redundant return detected."

   Note: one could not use 'ILIKE' in WHERE clauses changed as it is not supported by MariaDB and MySql.
   Hence we use lower() in changed WHERE clauses.

 Fix for issue #2080

Updated Usage page display to fix several issues. ...

- Moved mouse pointer instruction.
    - Made textual changes to "No. of plans by template"
    - The bar charts for  "No. users joined during last year" and
    "No. plans during last year" months are in ascending order. They were
    in descending order previously. Updated the count statistics methods
    in statistics_controller.rb.
    - The "No. plans by template" bar chart is now  replaced by a stacked bar chart
    as this is visually better for large data.
    - updated the by_template method in the create_or_update.rb with code from @xsrust.
    This now aggregates template counts for a month correctly.

    Fix for issue #1679.

Static pages edition integration

Fixes in models annotations

Fixed models & schema annotations

The "No. plans by template" statistics and visualisation changes: ...

(1) The headers for the CSV for the Number of Plans by Template
             - the date column have dates in the format  'Jan 2018'
             - the template headers now display the Title of the templates
             - the Date and Count headers are capitalized.

        (2) The chart has been re-styled.
            The aspect ratio (width/height) of image is now dynamically
            set according to the selection of the month range.

        (3) Fixed broken rspec tests and rubocop errors/warnings.

        Fix for #1679.

Commented overridden methods in controllers & models

Added missing files for commit 1d9dde2

Changes following migrations

Fix on mixins calls in helpers & models

Separated core code from ours improvements for the new visibility

Merged with DMPRoadmap:master

Added the missing information in CSV export plans. ...

The answers with question options was not including the answer.text, but overwriting the variable answer_text that held the value.

    Further, we removed line breaks and carriage returns in the answer text and replaced them by spaces making the answer text a single line for the csv.

    Fix for Issue #2058.

fixed pagination issues (#2045) ...

fixed issue with public plans template sort

Added slug to themes & theme API now uses slug

Merge branch 'master' into development