Log Message:
viking: Update to 1.7

packaging changes:

  - remove patch fragment applied upstream
  - add a request to clarify and upstream the sun patch
  - update comments about why things are or are not included.  Add a
    note to consider gtk3.
  - disable geoclue, oauth, and zip, pending decision on defaults and
    options (magic and mapnik remain disabled)
  - remove perl dependencies, apparently no longer preesent upstream
  - depend on libbzip2
  - depend on png (was already indirect)
  - depend on nettle (MD5 for thumbnail cache)

upstream changes:

== New features since 1.6.2 ==
* KMZ Map File Support
* Apply Button for Layer Properties
* Support More GPX Fields
* Updated Default Map: Mapbox Outdoors
* GeoClue Support for Automatic Location
* Faster GPX File Loading
* Waypoint / EXIF GPS Image Direction Support
* Support More Garmin Waypoint Symbols
* Support Garmin Device GPX Point Limits
* Windows GPSD Client
* Support 'External' GPX File Layers in .vik Files
* Usage of HTTPS addresses
* Support OAuth for OSM
* Support High Resolution Displays
* Track+Route Split+Join Tools
* Calculation of Eddington Number
* Calendar Display
* Can Select a Result from the Online Search Results
* Reproducible Builds
* 64bit Windows Build only
* Travis Build + CI
* Consistent Licensing of GPL2+
* Many Internal Improvements + Fixes

(bug fixes)