Configure Number of Buffer-able Features

Update the app declaration in app.js. Include the query configuration object, and set bufferMaxFeatures to the largest number of features the user should be allowed to buffer.

var app = new gm3.Application({
    mapserver_url: CONFIG.mapserver_url,
    mapfile_root: CONFIG.mapfile_root,
    map: {
        scaleLine: {
            enabled: true,
            units: 'imperial'
        }
    },
    mapbooks: {
        'default': 'mapbook.xml',
        'editing': 'mapbook-editing.xml',
        'test': 'mapbook-test-servers.xml'
    },
    query: {
        bufferMaxFeatures: 1000
    }
});