Round maneuver location to correct precision

[koebi]

Pull Request Checklist

• 1. I have rebased the latest version of the master branch into my feature branch and all conflicts have been resolved.
• 2. I have added information about the change/addition to functionality to the CHANGELOG.md file under the [Unreleased] heading.
• 3. I have documented my code using JDocs tags.
• 4. I have removed unnecessary commented out code, imports and System.out.println statements.
• 5. I have written JUnit tests for any new methods/classes and ensured that they pass.
• 6. I have created API tests for any new functionality exposed to the API.
• 7. If changes/additions are made to the app.config file, I have added these to the app.config wiki page on github along with a short description of what it is for, and documented this in the Pull Request (below).
• 8. I have built graphs with my code of the Heidelberg.osm.gz file and run the api-tests with all test passing
• 12. I have written in the Pull Request information about the changes made including their intended usage and why the change was needed.

Information about the changes

Previously, coordinate precision of locations in maneuvers was floating point precision, which makes no sense.
They now get rounded to the default 6 decimal places everywhere.

[takb]

ok