Added sqlcl install script

Author: jgebal

.travis/install_sqlcl.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+set -e
+
+SQLCL_FILE=sqlcl-18.3.0.259.2029.zip
+cd .travis
+
+# Download if not present on cache dir.
+if [ ! -f $CACHE_DIR/$SQLCL_FILE ]; then
+    npm install -g phantomjs-prebuilt casperjs
+    bash download.sh -p sqlcl
+    mv $SQLCL_FILE $CACHE_DIR
+else
+    echo "Installing sqlcl from cache..."
+fi;
+
+# Install sqlcl.
+unzip -q $CACHE_DIR/$SQLCL_FILE -d $HOME
+
+# Check if it is installed correctly.
+$SQLCLI -v