Merge pull request #951 from nextcloud/release/1.6.4

## 1.6.4 - 2018-11-23

### Fixed

- Use clearer color to easier locate today

  [#850](https://github.com/nextcloud/calendar/pull/850)

- Styling broken with Nextcloud 14 using Dark theme

  [#938](https://github.com/nextcloud/calendar/issues/938)

- Missing name when using the dropdown for location -> contacts

  [#776](https://github.com/nextcloud/calendar/issues/776)

- Public calendar iframe has issues on some browser (requires Nextcloud 15+)

  [#169](https://github.com/nextcloud/calendar/issues/169)

- Broken positioning of New calendar button in Internet explorer 11

  [#949](https://github.com/nextcloud/calendar/pull/949)

- Provide autocompletion addresses as a single line

  [#933](https://github.com/nextcloud/calendar/issues/933)

## 1.6.3 - 2018-10-16

### Fixed

- Incorrect creation of attendees that led to duplicate entries after invitation response

* 🙋 **Attendees!** Invite people to your events.

* 🙈 **We’re not reinventing the wheel!** Based on the great [davclient.js](https://github.com/evert/davclient.js), [ical.js](https://github.com/mozilla-comm/ical.js) and [fullcalendar](https://github.com/fullcalendar/fullcalendar) libraries.

	]]></description>

	<version>1.6.3</version>

	<version>1.6.4</version>

	<licence>agpl</licence>

	<author homepage="https://georg.coffee">Georg Ehrke</author>

	<author homepage="http://raghunayyar.com">Raghu Nayyar</author>