Patch to forcetk.js to login & apexrest methods. add login via username & password with a grant_type of password to eliminate the Oauth redirect process

example.js

	var c = new forcetk.Client('<client_id>');
	
	c.login({
		'environment': 'test',
		'client_id': '<client_id>',
		'client_secret': '<client_secret>',
		'username': 'joe@example.com',
		'password': 'secret123'
		
	}, function(data) {
		c.describeGlobal(function(data) {
			console.log(JSON.stringify(data));
		});

		c.apexrest('/communications',
			function(data) {
				console.log(JSON.stringify(data));
			},
			function(jqXHR, textStatus, errorThrown) {
				console.log(JSON.stringify(jqXHR));
			}
		);


	}, function(jqXHR, textStatus, errorThrown) {
		console.log(JSON.stringify(jqXHR));
	});

forcetk-patch.js

	/*
		options['environment'] - 'production' or 'test'
		options['client_id']
		options['client_secret']
		options['username']
		options['password']
	*/
	forcetk.Client.prototype.login = function(options, callback, error) {
		var that = this;

		var optionKeys = 'environment,client_id,client_secret,username,password';
		var savedSessionKey = '';
		$.each(optionKeys.split(','), function(i, e) {
			savedSessionKey += options[e];
		});

		var successFn = function(data) {
			that.setSessionToken(data['access_token'], null, data['instance_url'])
			localStorage[savedSessionKey] = JSON.stringify(data);
			callback(data);
		};
		
		var sessionAsJson = localStorage[savedSessionKey];
		if (sessionAsJson) {
			successFn(JSON.parse(sessionAsJson));
			return;
		}

		 $.ajax({
		 	type: "POST",
		    async: true,	
		    url: 'https://' + ((options['environment'] === 'production') ? 'login' : 'test') + '.salesforce.com/services/oauth2/token',
		    contentType: 'application/x-www-form-urlencoded',
		    cache: false,
		    processData: true,	
	        data: $.extend(options, {
				'grant_type': 'password'
			}),
	        success: successFn,
	        error: error,
	        dataType: "json",
		});
	};

    forcetk.Client.prototype.apexrest = function(path, callback, error, method, payload, retry) {
        var that = this;
        var url = this.instanceUrl + '/services/apexrest' + path;

        $j.ajax({
            type: method || "GET",
            async: this.asyncAjax,
            url: (this.proxyUrl !== null) ? this.proxyUrl: url,
            contentType: 'application/json',
            cache: false,
            processData: false,
            data: payload,
            success: callback,
            error: (!this.refreshToken || retry ) ? error : function(jqXHR, textStatus, errorThrown) {
                if (jqXHR.status === 401) {
                    that.refreshAccessToken(function(oauthResponse) {
                        that.setSessionToken(oauthResponse.access_token, null,
                        oauthResponse.instance_url);
                        that.ajax(path, callback, error, method, payload, true);
                    },
                    error);
                } else {
                    error(jqXHR, textStatus, errorThrown);
                }
            },
            dataType: "json",
            beforeSend: function(xhr) {
                if (that.proxyUrl !== null) {
                    xhr.setRequestHeader('SalesforceProxy-Endpoint', url);
                }
                xhr.setRequestHeader(that.authzHeader, "OAuth " + that.sessionId);
                xhr.setRequestHeader('X-User-Agent', 'salesforce-toolkit-rest-javascript/' + that.apiVersion);
                		
                if (that.userAgentString !== null) {
                    xhr.setRequestHeader('User-Agent',that.userAgentString);
                }
            }
        });