Py-nightscout

- Round mmol/L SGV to 1 decimal point

- Added API for getting Device Information, making it possible to get the Bluetooth transmitter's battery percentage
- Added SGV values in mmol/L

This is a point release to upgrade some of the dependencies, to make it easier for uses to get the latest version of all the packages libraries. There are no core Nightscout code changes in this releases.

This is a bug fix / improvement release in the 0.12 series.

**Changes:**

* Most Javascript in the site is now transpiled (yes this is highly technical) to be compatible with older devices such as iPads running iOS 9, so devices that haven’t worked correctly with release 0.12 probably work after upgrading to 0.12.4
* Medtronic Guardian Connect Plugin has been updated to be compatible with US users
* Clock views now show the X to close on load, which then hides itself until screen is clicked
* Several bug fixes to the clock views
* Daily reports don’t show estimated insulin values for carbs due to potential confusion over this referring to dosed insulin
* Profile conversion warnings were disabled
* Fixed a plugin setting rendering bug introduced in the 0.12.3
* German and Russian language updates
* Mmol unit conversion fixes
* Several small documentation improvements
* Fixed an issue causing a client crash on first start of a new site
* Temporary Target Cancel event bug introduced in the previous release has been fixed

**Random tidbit: at the time of release, Nightscout is the 10th most forked project in the entire Github!**

Contributor thanks (in no particular order) to this release go to Erin879, GermanBluefox, PieterGit, PetrOndrusek, jpcunningh, codacy-bot, bassettb, ireneusz-ptak, unsoluble, herzogmedia, aviau, apanasef & sulkaharo

This is a bug fix / improvement point release of Nightscout Jellybean

**New features**

* Adds option to colorize the OpenAPS prediction lines, along with a new mechanism for plugins to expose their extended settings to the client UI, so this setting can be switched on and off in the client
* CarePortal now validates Temporary Target values and prevents saving entries with broken data

**Changes**

* Lowers the Node version requirement to allow Azure deploys. Azure deploys are still likely to fail on free Azure tiers due to running out of hosting resources to run the site. Microsoft is looking into this and hoping to provide us a solution to hosting Nightscout in Azure, but for now if you want to upgrade to this release, you will need to use a paid Azure tier or an alternate hosting solution like Heroku (instructions on how to migrate to Heroku are to be found at nightscout.info)
* Updated documentation regarding Azure and above mentioned configuration
* **OpenAPS 0.6 users** OpenAPS 0.6 has issues with date comparison that cause the Nightscout treatment synchronization to fail for users in time zones with the relative time earlier to UTC (UTC minus something). This release adds a workaround to the system that converts dates back to the originating form in the REST API, causing the OpenAPS date comparison logic to work as expected. You can enable this workaround by setting DE_NORMALIZE_DATES=true in Heroku / Azure.* Fixes the button positioning the toolbar
* The clock view close X button is now controlled by a parameter in the URL and a setting. If you want to bookmark a clock view without the X but have the X appear when opening the view from the navigation, open the clock view from Nightscout navigation and remove the `showClockClosebutton=true` parameter from the page address before adding the bookmark. To have the X never appear, set `SHOW_CLOCK_CLOSEBUTTON` to `false` in the server settings.
* Latest Stop Sensor event from last 32 days is now loaded to fix some plugin issues for users who have a sensor that was started and stopped recently but more than 2 days ago

**Developers**

* Allow Node 12 in the node version checks
* Swagger REST API documentation how works over /api-docs and developer docs in CONTRIBUTING.md have been updated

Another small but important fix: adds X close buttons to all views on the site, to help unstuck iOS users who've added the site to springboard, so they don't have to restart the phone to get back to the graph view