Nodejs MySQL Query Builder

This is a small mysql query builder using the nodejs mysql driver by felixge.

Sample Usage:

```js
var query_builder = require('query_builder');

var dbconn_default = {
host : 'host',
user : 'user',
pass : 'password',
dbase : 'database_schema'
};

var qb = new query_builder( dbconn_default );

var select_details = {
table : 'table_name',
fields : [ 'field1', 'field2', ... ],
conditions : {
field1 : 'value1',
field2 : 'value2'
}
};

qb.select( select_details, function( err, rows ){
if( err )
console.log( err );
else
console.log( rows );
});
```

By this, we can generate a query something like this:

```sql
SELECT `field1`, `field2` FROM `table_name` WHERE `field1` = 'value1' AND `field2` = 'value2'
```

For more information, visit the github project.
https://github.com/sarahseguenza/nodejs-mysql-query-builder