Merge branch piggz/nav into develop:

 - fix conflict
 - add a icon for the navigation app.

1 files changed, 118 insertions, 0 deletions

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+# Navigation Service
+## Introduction
+The navigation ble service provides 4 characteristics to allow the the watch to display navigation instructions from a companion application.  The intended purpose is when performing some outdoor activities, for example running or cycling.
+
+The 4 characteristics are:
+flag (string) - Upcoming icon name
+narrative (string) - Textual description of instruction
+manDist (string) - Manouvre Distance, the distance to the upcoming change
+progress (uint8) - Percent complete of total route, value 0-100
+
+## Service
+The service UUID is c7e60001-78fc-48fe-8e23-433b3a1942d0
+
+## Characteristics
+## Flags (UUID c7e60002-78fc-48fe-8e23-433b3a1942d0)
+All included icons are from pure-maps, which provides the actual routing from the client. The icon names ultimately come from the mapbox project "direction-icons", See https://github.com/rinigus/pure-maps/tree/master/qml/icons/navigation See the end of this document for the full lsit of supported icon names.
+
+## Narrative (UUID c7e60003-78fc-48fe-8e23-433b3a1942d0)
+This is a client supplied string describing the upcoming instruction such as "At the roundabout take the first exit".
+
+## Man Dist (UUID c7e60004-78fc-48fe-8e23-433b3a1942d0)
+This is a short string describing the distance to the upcoming instruction such as "50 m".
+
+## Progress (UUID c7e60001=5-78fc-48fe-8e23-433b3a1942d0)
+The percent complete in a uint8.  The watch displays this as an overall progress in a progress bar.
+
+## Full icon list
+* arrive
+* arrive-left
+* arrive-right
+* arrive-straight
+* close
+* continue
+* continue-left
+* continue-right
+* continue-slight-left
+* continue-slight-right
+* continue-straight
+* continue-uturn
+* depart
+* depart-left
+* depart-right
+* depart-straight
+* end-of-road-left
+* end-of-road-right
+* ferry
+* flag
+* fork
+* fork-left
+* fork-right
+* fork-slight-left
+* fork-slight-right
+* fork-straight
+* invalid
+* invalid-left
+* invalid-right
+* invalid-slight-left
+* invalid-slight-right
+* invalid-straight
+* invalid-uturn
+* merge-left
+* merge-right
+* merge-slight-left
+* merge-slight-right
+* merge-straight
+* new-name-left
+* new-name-right
+* new-name-sharp-left
+* new-name-sharp-right
+* new-name-slight-left
+* new-name-slight-right
+* new-name-straight
+* notification-left
+* notification-right
+* notification-sharp-left
+* notification-sharp-right
+* notification-slight-left
+* notification-slight-right
+* notification-straight
+* off-ramp-left
+* off-ramp-right
+* off-ramp-sharp-left
+* off-ramp-sharp-right
+* off-ramp-slight-left
+* off-ramp-slight-right
+* off-ramp-straight
+* on-ramp-left
+* on-ramp-right
+* on-ramp-sharp-left
+* on-ramp-sharp-right
+* on-ramp-slight-left
+* on-ramp-slight-right
+* on-ramp-straight
+* rotary
+* rotary-left
+* rotary-right
+* rotary-sharp-left
+* rotary-sharp-right
+* rotary-slight-left
+* rotary-slight-right
+* rotary-straight
+* roundabout
+* roundabout-left
+* roundabout-right
+* roundabout-sharp-left
+* roundabout-sharp-right
+* roundabout-slight-left
+* roundabout-slight-right
+* roundabout-straight
+* turn-left
+* turn-right
+* turn-sharp-left
+* turn-sharp-right
+* turn-slight-left
+* turn-slight-right
+* turn-stright
+* updown
+* uturn