v0.1.10

Add method to get session and keyspace from parameters.
Calling cassio.init() with insufficient arguments now raises an exception.
Improved prepared-statement management with metadata WHERE clauses (by @epinzur)
Fixed: bug when metadata key contains json and, in general, curly braces (by @epinzur)
Remove support for (EOL'd) python 3.8
Bugfix: find_and_delete_entries (metadata mixin) now uses the provided batch_size
Bugfix: find_and_delete_entries (metadata mixin) made compatible with clustered mixin
Added testing for find_and_delete_entries:

• with clustered mixin and all call patterns (w/out partition, w/out row_id)
• enhanced testing on simple metadata table (with counting checks, all call patterns)

Bugfix: metadata updates completely replace, consistently, the preexisting metadata

• with specific tests

v0.1.9

• Default proto version 4 for Astra (w/ fallback); alias ASTRA_DB_ID (#164)
• lift a test removal since C 5.0 supports that query now (#167)