Fix/issue 289 (complement) (#296)

* Add alternative execution for counting queries in lock service

As explained in the issue #289, the aggregate functions are not supported by AWS Keyspaces.
This fix tries to execute counting queries and if it fails, the same query without the COUNT
function is executed and the returned rows are counted programmatically.

Also removes code specific to `MSSQLDatabase` in `LockServiceCassandra` obviously not related
with Liquibase implementation for Cassandra.

* Remove build folder and update .gitignore

* Fix issue #289: override isDatabaseChangeLogLockTableInitialized with parameter forceRecheck

src/main/java/liquibase/ext/cassandra/lockservice/LockServiceCassandra.java

@@ -3,7 +3,6 @@
 import liquibase.Scope;
 import liquibase.database.Database;
 import liquibase.database.ObjectQuotingStrategy;
-import liquibase.database.core.MSSQLDatabase;
 import liquibase.exception.DatabaseException;
 import liquibase.exception.LiquibaseException;
 import liquibase.exception.LockException;
@@ -12,8 +11,6 @@
 import liquibase.executor.ExecutorService;
 import liquibase.ext.cassandra.database.CassandraDatabase;
 import liquibase.lockservice.StandardLockService;
-import liquibase.sql.Sql;
-import liquibase.sqlgenerator.SqlGeneratorFactory;
 import liquibase.statement.core.LockDatabaseChangeLogStatement;
 import liquibase.statement.core.RawSqlStatement;
 import liquibase.statement.core.UnlockDatabaseChangeLogStatement;
@@ -147,8 +144,8 @@ public boolean isDatabaseChangeLogLockTableCreated() {
     }
 
     @Override
-    public boolean isDatabaseChangeLogLockTableInitialized(final boolean tableJustCreated) {
-        if (!isDatabaseChangeLogLockTableInitialized) {
+    public boolean isDatabaseChangeLogLockTableInitialized(final boolean tableJustCreated, final boolean forceRecheck) {
+        if (!isDatabaseChangeLogLockTableInitialized || forceRecheck) {
             Executor executor = Scope.getCurrentScope().getSingleton(ExecutorService.class).getExecutor("jdbc", database);
 
             try {