v0.3.6

What's Changed

• Make WriteJSON resilient to json.Marshal errors by @joamaki in #71
• Add WatchSet for watching a dynamic set of channels by @joamaki in #72
• Add InsertWatch operation by @joamaki in #73
• watchset: Use a map for channels and add Merge and Has by @joamaki in #74

Full Changelog: v0.3.5...v0.3.6