Try to flush messages in the queue individually if queue can't be read
into a list.
Merge pull request #121 from segmentio/prateek/flush-queue

Try to flush messages in the queue individually if queue can't be read
Revert "Add Kahuna Integration"

This reverts commit aea9191efa062dea40268894bc4d8e5413a703d0.

Conflicts:
	core/src/androidTest/java/com/segment/analytics/KahunaRobolectricTest.java
	core/src/main/java/com/segment/analytics/IntegrationManager.java
	core/src/main/java/com/segment/analytics/KahunaIntegration.java
Start work on Standardizing Tests for Bundled Integrations
Migrate Amplitude Tests
Migrate Bugsnag Tests
Migrate Countly Tests
Migrate Crittercism Tests
Migrate Flurry Tests
Migrate Localytics Tests