SQL++ parser:
1. refactored asterix-aql to become asterix-lang-common and asterix-lang-aql, where the former is the common part for different languages;
2. added asterix-lang-sqlpp on top of asterix-lang-common;
3. ported parser tests, optimizer tests and runtime tests in asterix-app to their sql++ version, and added parser tests for all the queries.

Change-Id: Ie5af4e3b692ca017ec047a1ba3b404a51beb3a2e
Reviewed-on: https://asterix-gerrit.ics.uci.edu/466
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Till Westmann <tillw@apache.org>
diff --git a/asterix-tools/pom.xml b/asterix-tools/pom.xml
index 54be8a2..cbb322d 100644
--- a/asterix-tools/pom.xml
+++ b/asterix-tools/pom.xml
@@ -139,7 +139,7 @@
 	<dependencies>
 		<dependency>
 			<groupId>org.apache.asterix</groupId>
-			<artifactId>asterix-aql</artifactId>
+			<artifactId>asterix-lang-aql</artifactId>
 			<version>0.8.8-SNAPSHOT</version>
 			<scope>compile</scope>
 		</dependency>
@@ -161,12 +161,12 @@
 			<version>0.8.8-SNAPSHOT</version>
 			<scope>compile</scope>
 		</dependency>
-		<dependency>
+		<!--<dependency>
 			<groupId>org.apache.asterix</groupId>
 			<artifactId>asterix-metadata</artifactId>
 			<version>0.8.8-SNAPSHOT</version>
 			<scope>compile</scope>
-		</dependency>
+		</dependency>-->
 		<dependency>
 			<groupId>org.apache.asterix</groupId>
 			<artifactId>asterix-events</artifactId>