java-dialogflow v4.0.0

⚠ BREAKING CHANGES

• release gapic-generator-java v2.0.0 (#644)

Features

• add language code to streaming recognition result (11e9d09)
• add language code to streaming recognition result (11e9d09)
• add time zone and security settings to conversation profile (11e9d09)
• deprecate ofProjectLocationAgentName and ofProjectAgentName (#622) (3d85b8a)
• Expose Locations service to get/list avaliable locations of Dialogflow products (11e9d09)
• release gapic-generator-java v2.0.0 (#644) (11e9d09)

Bug Fixes

• fix validation result docs (11e9d09)
• fix validation result docs (11e9d09)

Documentation

• fix typos (#633) (36cb748)
• reorder some fields (11e9d09)
• update agent docs docs: update entity type docs (11e9d09)
• update environment docs (11e9d09)
• update intent docs (11e9d09)

Dependencies

• update dependency com.google.cloud:google-cloud-core to v2 (#634) (fb4aee6)
• update dependency com.google.cloud:google-cloud-shared-dependencies to v2 (#637) (6f7ef02)