v0.2.0+rc0

UI Overhaul:

• Comma-separated fields are now separate text boxes with +/- buttons
• Aggregation field is now a proper code editor with JSON syntax highlighting

Bugfixes:

• Optional values (fields in some documents, but not others) are now handled correctly
• Separate series are now labeled as such

New Features:

• Schema Inference - It is now possible for the plugin to "infer" the schema of query results by scanning the first few documents and assuming the rest have the same fields and types
• Series names can now be customized based on the value field name and labels
• All datatypes that can be returned by the MongoDB driver are now supported and converted to the closest Grafana datatypes, including nested JSON documents.

Housekeeping:

• Logging noise moved to DEBUG log level
• CI now runs integration tests in addition to just checking that plugin builds
• README how has copy-pasteable installation examples and is reorganized to put installation first before building from source