ASTERIXDB-1120: Fix sub-project builds.

The maven-assembly-plugin configuration for creating source tarballs was
interfering with building in a subdirectory. Since we only need tarballs
at release time, move this plugin to a new 'asterix-release' profile.
(Use same name as asterix project in preparation for merging of the projects.)

Change-Id: Ia42ccd27a9882ac8a27ce1d17c9d71c9ad5505b6
Reviewed-on: https://asterix-gerrit.ics.uci.edu/432
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Ian Maxon <imaxon@apache.org>
Tested-by: Chris Hillery <ceej@lambda.nu>
diff --git a/pom.xml b/pom.xml
index c0f097f..8e4aeec 100644
--- a/pom.xml
+++ b/pom.xml
@@ -192,31 +192,6 @@
           </excludes>
 	</configuration>
       </plugin>
-      <plugin>
-          <groupId>org.apache.maven.plugins</groupId>
-          <artifactId>maven-assembly-plugin</artifactId>
-<!-- We override the configuration plugin to override the descriptor to use for building
-  the source release zip. Specifically, we would like to control the inclusions/exclusions.
-  For example, we exclude the KEYS file from the zip -->
-          <executions>
-              <execution>
-    <!-- Use this id to match the id mentioned in the assembly plugin configuration in
-      the apache parent POM under the apache-release profile -->
-                  <id>source-release-assembly</id>
-                  <phase>package</phase>
-                  <goals>
-                      <goal>single</goal>
-                  </goals>
-    <!-- combine.self should be override to replace the configuration in the parent POM -->
-                  <configuration combine.self="override">
-                      <runOnlyAtExecutionRoot>true</runOnlyAtExecutionRoot>
-                      <descriptors>
-                          <descriptor>src/main/assembly/source.xml</descriptor>
-                      </descriptors>
-                  </configuration>
-              </execution>
-          </executions>
-      </plugin>
     </plugins>
   </build>
 
@@ -235,6 +210,38 @@
         <hanging.pregelix.tests />
       </properties>
     </profile>
+    <profile>
+      <id>asterix-release</id>
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-assembly-plugin</artifactId>
+            <!-- We override the configuration plugin to override the descriptor to use for building
+            the source release zip. Specifically, we would like to control the inclusions/exclusions.
+            For example, we exclude the KEYS file from the zip -->
+            <executions>
+              <execution>
+                <!-- Use this id to match the id mentioned in the assembly plugin configuration in
+                the apache parent POM under the apache-release profile -->
+                <id>source-release-assembly</id>
+                <phase>package</phase>
+                <goals>
+                  <goal>single</goal>
+                </goals>
+                <!-- combine.self should be override to replace the configuration in the parent POM -->
+                <configuration combine.self="override">
+                  <runOnlyAtExecutionRoot>true</runOnlyAtExecutionRoot>
+                  <descriptors>
+                    <descriptor>src/main/assembly/source.xml</descriptor>
+                  </descriptors>
+                </configuration>
+              </execution>
+            </executions>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
   </profiles>
 
   <repositories>