Adding ability to upload and then reference an image through the HTML editor.
Work on the wiki pages for a community. Multiple pages and cross-linking supported (not finished).
Wiki pages for a community.
Merge branch 'wiki' of https://github.com/alxdarksage/Bridge into wiki

Conflicts:
	src/main/java/org/sagebionetworks/bridge/webapp/ClientUtils.java
	src/main/java/org/sagebionetworks/bridge/webapp/controllers/FileController.java
	src/main/java/org/sagebionetworks/bridge/webapp/controllers/communities/CommunityController.java
	src/main/java/org/sagebionetworks/bridge/webapp/controllers/communities/CommunityWikiController.java
	src/main/java/org/sagebionetworks/bridge/webapp/forms/WikiForm.java
	src/main/java/org/sagebionetworks/bridge/webapp/forms/WikiHeader.java
	src/main/resources/messages/messages.properties
	src/main/resources/messages/messages_eo.properties
	src/main/webapp/WEB-INF/jsp/communities/edit.jsp
	src/main/webapp/WEB-INF/jsp/communities/new.jsp
	src/main/webapp/WEB-INF/tags/community-wiki-edit.tag
	src/main/webapp/WEB-INF/tags/community.tag
Removing this temp file
Tests for joining/leaving community; tests for adding/removing admins
Tests and related fixes.
Wiki tests working in ghostdriver
Updating to build
Updating to release-23 version
Fixing CKEditor dialog initialization
Merge pull request #34 from alxdarksage/wiki

Wiki