[build] Use HTTPS instead of HTTP to resolve dependencies

This fixes a security vulnerability in this project where the `pom.xml`
files were configuring Maven to resolve dependencies over HTTP instead of
HTTPS.

Alters dependency resolution for
* cassandra
* hypertable
* maprdb
* maprjsondb
* mongodb

closes #1406

cassandra/pom.xml

@@ -97,7 +97,7 @@ LICENSE file.
 		<repository>
 			<id>central2</id>
 			<name>sigar Repository</name>
-			<url>http://repository.jboss.org/nexus/content/groups/public-jboss/</url>
+			<url>https://repository.jboss.org/nexus/content/groups/public-jboss/</url>
 			<layout>default</layout>
 			<snapshots>
 				<enabled>false</enabled>

hypertable/pom.xml

@@ -52,7 +52,7 @@ LICENSE file.
   <repositories>
     <repository>
       <id>clojars.org</id>
-      <url>http://clojars.org/repo</url>
+      <url>https://clojars.org/repo</url>
     </repository>
   </repositories>
 </project>

maprdb/pom.xml

@@ -25,7 +25,7 @@
 	<repositories>
 		<repository>
 			<id>mapr-releases</id>
-			<url>http://repository.mapr.com/maven/</url>
+			<url>https://repository.mapr.com/maven/</url>
 			<snapshots>
 				<enabled>false</enabled>
 			</snapshots>

maprjsondb/pom.xml

@@ -25,7 +25,7 @@
 	<repositories>
 		<repository>
 			<id>mapr-releases</id>
-			<url>http://repository.mapr.com/maven/</url>
+			<url>https://repository.mapr.com/maven/</url>
 			<snapshots>
 				<enabled>false</enabled>
 			</snapshots>

mongodb/pom.xml

@@ -82,7 +82,7 @@ LICENSE file.
       </snapshots>
       <id>allanbank</id>
       <name>Allanbank Releases</name>
-      <url>http://www.allanbank.com/repo/</url>
+      <url>https://www.allanbank.com/repo/</url>
       <layout>default</layout>
     </repository>
   </repositories>