More conky updates

[nandub]

I added the changes on top of pull #185, you can merge this one instead of the other one.

• it has pull #185 changes
• other improvements and
• implemented maidenhead grid locator on the C (conky/maidenhead.c) language:
  • get maidenhead (c implementation) with gpspipe (to get latitude and longitude) gcc is required. see conky/get-grid file.
  • get maidenhead (c implementation) with passing arguments (passing latitude and longitude as arguments) gcc is required. see conky/get-grid file.
  • get maidenhead (ruby implementation) fallback to this one if gcc is not installed (different OS maybe). see conky/get-grid.rb file.

[km4ack]

I am going to hold off on this pull for the time being. Some users are having issues around Conky and the GPS with the way it currently is implemented. This is causing Conky to either crash or fail to start. I will be making changes soon (hopefully this week) to try and eliminate the Conky issues.

[nandub]

@km4ack let me know if you need help with testing. I have a GPS dongle attached to an rpi2.

[km4ack]

Have you tried the latest BAP 3.0.7 to see if you are still having issues with the GPS and conky?

[darigovresearch]

@nandub are you still having issues with the latest BAP 3.0.7?

[nandub]

@km4ack sorry I didn't get back to you sooner to answer. I was not having issues with conky and GPS but rather I was improving the code. This pull request is adding another way to get grid/maidenhead without using ruby. I added a function to retrieve with gpspipe or using C code to calculate the grid.

I re-based the branch against current dev to remove the current conflicts so it should merge cleanly. Let me know what you think.