IDE 1.2.4, VM 175

IDE
- Make built-in Library folders translatable
- Make "update firmware" recognize Clue boards with the latest uf2 bootloader (0.7.0)
- Fix: Safari crashes MicroBlocks when you try to get help on a block and popups are blocked

Boardie
- Filter out user-prefs in file ops

VM
- Make digital write work even on pins that are doing PWM
- Make primI2cWrite accept a string, as well as a list or byte array

Libraries
- Add touch screen lib to "Other" folder
- Add start/stop tone blocks to Tone library to allow support applications like a touch-based piano
- Tweak touch event mechanism in Touch (MPR121) library.
- Tweaks to MakerBit and HyperDuino libraries
- Rename library: MP3 Player (DFRobot, Octopus) -> MP3 Player
- Rename library: 16x2 DFRobot LCD (1602 I2C) -> LCD Display
- Move System folder into Other folder
- Rename "Graphics" folder -> "Graphics and Displays"

Translations
- Uupdate Catalan translation