JSCBC-669, JSCBC-670: Fixed callbacks not sending cas and initial value parsing Motivation ---------- The callback for handling store operations was not correctly passing the cas values back to the Node.js callback. Additionally, the `initial` value for counter operations is not being parsed appropriately due to a conflict with CAS parsing. Changes ------- Fixed store callback to return cas along with errors and mutation tokens. Renamed parseOption to parseCasOption for cas, and created a new parseOption(uint64) for parsing other options/parameters. (121233)

JSCBC-669, JSCBC-670: Fixed callbacks not sending cas and initial value parsing Motivation ---------- The callback for handling store operations was not correctly passing the cas values back to the Node.js callback. Additionally, the `initial` value for counter operations is not being parsed appropriately due to a conflict with CAS parsing. Changes ------- Fixed store callback to return cas along with errors and mutation tokens. Renamed parseOption to parseCasOption for cas, and created a new parseOption(uint64) for parsing other options/parameters. (121233) · Gerrit Code Review