turtleblocksjs | Javascript/HTML5 port of Turtle Blocks

The basic buttons and basic blocks are explained in detail in [Documentation](https://github.com/sugarlabs/turtleblocksjs/blob/master/documentation/README.md). A guide to programming with Turtle Blocks is available in [Turtle Blocks Guide](https://github.com/sugarlabs/turtleblocksjs/blob/master/guide/README.md). <img src=https://github.com/sugarlabs/turtleblocksjs/blob/master/documentation/fast-button.png /> Click to run the project in fast mode. Long press to run the project in slow mode. <img src=https://github.com/sugarlabs/turtleblocksjs/blob/master/documentation/step-button.png /> Click to run the project step by step. <img src=https://github.com/sugarlabs/turtleblocksjs/blob/master/documentation/stop-turtle-button.png /> Stop the current project running. <img src=https://github.com/sugarlabs/turtleblocksjs/blob/master/documentation/clear-button.png /> Clear the screen and return the turtles to their initial positions. <img src=https://github.com/sugarlabs/turtleblocksjs/blob/master/documentation/hide-blocks-button.png /> Hide or show the blocks and the palettes. <img src=https://github.com/sugarlabs/turtleblocksjs/blob/master/documentation/collapse-blocks-button.png /> Expand or collapse start and action stacks. <img src=https://github.com/sugarlabs/turtleblocksjs/blob/master/documentation/home-button.png /> Return all blocks to the center of the screen. <img src=https://github.com/sugarlabs/turtleblocksjs/blob/master/documentation/forward.png /> Moves turtle forward. <img src=https://rawgithub.com/sugarlabs/turtleblocksjs/master/documentation/right.svg /> Turns turtle clockwise (angle in degrees). <img src=https://rawgithub.com/sugarlabs/turtleblocksjs/master/documentation/set_color.svg /> Sets color of the line drawn by the turtle. <img src=https://rawgithub.com/sugarlabs/turtleblocksjs/master/documentation/set_pen_size.svg /> Sets size of the line drawn by the turtle. <img src=https://rawgithub.com/sugarlabs/turtleblocksjs/master/documentation/repeat.svg /> Loops specified number of times. <img src=https://rawgithub.com/sugarlabs/turtleblocksjs/master/documentation/action_flow.svg /> Top of nameable action stack. <img src=https://rawgithub.com/sugarlabs/turtleblocksjs/master/documentation/action.svg /> Invokes named action stack. Google Code-in participant Jasmine Park has created some guides to using Turtle Blocks: [Turtle Blocks: An Introductory Manual](http://people.sugarlabs.org/walter/TurtleBlocksIntroductoryManual.pdf) and [Turtle Blocks: A Manual for Advanced Blocks](http://people.sugarlabs.org/walter/TurtleBlocksAdvancedBlocksManual.pdf).