Etherpad v1.6.0

• SECURITY: Fix a possible xss attack in iframe link
• NEW: Add a aceSelectionChanged hook to allow plugins to react when the cursor location changes.
• NEW: Accepting Arrays on 'exportHtmlAdditionalTags' to handle attributes stored as ['key', 'value']
• NEW: Allow admin to run on a sub-directory
• NEW: Support version 5 of node.js
• NEW: Update windows build to node version 4.4.3
• NEW: Create setting to control if a new line will be indented or not
• NEW: Add an appendText API
• NEW: Allow LibreOffice to be used when exporting a pad
• NEW: Create hook exportHtmlAdditionalTagsWithData
• NEW: Improve DB migration performance
• NEW: allow settings to be applied from the filesystem
• NEW: remove applySettings hook and allow credentials.json to be part of core
• NEW: Use exec to switch to node process
• NEW: Validate incoming color codes
• Fix: Avoid space removal when pasting text from word processor.
• Fix: Removing style that makes editor scroll to the top on iOS without any action from the user
• Fix: Fix API call appendChatMessage to send new message to all connected clients
• Fix: Timeslider "Return to pad" button
• Fix: Generating pad HTML with tags like instead of TAG:VALUE
• Fix: Get git commit hash even if the repo only points to a bare repo.
• Fix: Fix decode error if pad name contains special characters and is sanitized
• Fix: Fix handleClientMessage_USER_* payloads not containing user info
• Fix: Set language cookie on initial load
• Fix: Timeslider Not Translated
• Other: set charset for mysql connection in settings.json
• Other: Dropped support for io.js
• Other: Add support to store credentials in credentials.json
• Other: Support node version 4 or higher
• Other: Update uberDB to version 0.3.0