Coerce various pooling configs into integers (#32)

- minPoolSize
- maxPoolSize
- connectionTimeout

code review changes

Author: superkhau

lib/ibmdb.js

@@ -52,9 +52,10 @@ function IBMDB(name, settings) {
 
   // Save off the connectionOptions passed in for connection pooling
   this.connectionOptions = {};
-  this.connectionOptions.minPoolSize = (settings.minPoolSize || 0);
-  this.connectionOptions.maxPoolSize = (settings.maxPoolSize || 0);
-  this.connectionOptions.connectionTimeout = (settings.connectionTimeout || 60);
+  this.connectionOptions.minPoolSize = parseInt(settings.minPoolSize, 10) || 0;
+  this.connectionOptions.maxPoolSize = parseInt(settings.maxPoolSize, 10) || 0;
+  this.connectionOptions.connectionTimeout =
+    parseInt(settings.connectionTimeout, 10) || 60;
 
   // Create the Connection Pool object.  It will be initialized once we
   // have the connection string prepped below.