title: Flyway 3.0 Migration Checksum mismatch
body: <p>after upgrading Flyway Maven plugin from 2.3 to 3.0 I get:</p>
  
  <blockquote>
    <p>[ERROR] Failed to execute goal
    org.flywaydb:flyway-maven-plugin:3.0:migrate (default-cli) on project
    xxx: org.flywaydb.core.api.FlywayException: Validate failed. Found
    differences between applied migrations and available migrations:
    Migration Checksum mismatch for migration
    V003__data_feed_sources_locations.sql: DB=942424992,
    Classpath=1117634405 -> [Help 1]</p>
  </blockquote>
  
  <p>Got a similar error on some other project.</p>
  
  <p>If I downgrade back to 2.3 the migration runs ok. Does this has something to do with different platform encoding for calculating checksums?</p>
  
  <p>Any workaround, or better yet, proper solution?</p>