Added functionality to give warnings when links open in new windows. ...

The solution is based on the recommendation in "Techniques for WCAG 2.0" section
"G201: Giving users advanced warning when opening a new window":
"Example 2: Using CSS to provide a warning before opening a new window"
(cf., https://www.w3.org/TR/WCAG20-TECHS/G201.html)

Changes:

- any link in the views with target="_blank" has had css class "has-new-window-popup-info" to the link together with the span   <span class="new-window-pop-info"><%= _('Opens in new window') %></span>.
- The javascript script externalLink.js is used for external links that don't have the target="_blank" in the view.

Fix for issue #2175.

accessibility fix - add 'new window' text for screen readers when links has target=_blank (#1901) ...

added sr logic to download_plan submit button

Merge branch 'development' into master

Add Screen reader text for sort columns, adding scope to <th> tags

reverted changes to buttons <button><a ...></a></button> is invalid HTML5 and does not work in all browsers (#1636)

Fix buttons that do not provide a visual cue indicating that they have focus #1443 (#1600)

Page titles should be unique and descriptive #1441

updated tables so they have default sorts. updated paginable clear/search links ...

added logic to retain sort info after search

fixed sort link and updated tests

reverted changes to concern and paginable/search erbs

reverted tests

public DMPs paginablerised. DMPRoadmap/roadmap#1055 ...

public DMPs templates paginablerised. DMPRoadmap/roadmap#1055

plans visible to org admin paginablerised. DMPRoadmap/roadmap#1055

guidances paginablerised. DMPRoadmap/roadmap#1055

guidance_groups paginablerised. DMPRoadmap/roadmap#1055

remove tablesorter class from paginable views. Introduce Clear search results when ALL search results are active. DMPRoadmap/roadmap#1055

guidance policy for paginable/guidance/index/:page. DMPRoadmap/roadmap#1055

added csv download for org_admin plans page ...

added tests

removed comments

switch @org creation in test

debug in test

updated pundit handling

manually assign org admin perms

manually assign org admin perms

manually assign org admin perms

removed policy to controller

manually create role in test

commented out travis failure

updated Admin - Plans so that user can click through to a read-only version of the plan ...

tweaked note policies

fixed 2 plan policies

fixed tests

removed irrelevant nested policy and changed column name

Org Admin provide feedback ...

Add Plans page to Org Admin section

added org admin plans page

finsihed up org admin plans page

added feedback complete and updated emails to use email_signature partial

refactored access checks on Plan now that user can have multiple roles (reviewer + ?)

finished feedback completion routine

added tests for new feedback methods

fixes for merge conflicts

fixed issues with plan and user changes

fixed issue with notes controller test

fixed issue with phase controller test