Monument v0.7.0

Major Changes

• (#69) Allow weights on method splicing with splice_weight (defaults to 0).
• (#66) Allow method counts to be overridden per-method (by adding a count parameter to methods).
• (#67) Add error messages for giving the same debug/display name to multiple calls (specifically,
  two calls at the same lead location but with different place notations).
• (#70) New graph optimisation: remove links between mutually false chunks.

Internal Improvements

• (#64) Use goldilocks-json-fmt to format the test result files.