-Changed the STM32L1 "medium plus" (id 0x436) support to be called HIGH.
-Added the device id 0x427 and call it medium plus.
-Gave the loader more time so it stopped timing out and thinking it failed.
-Added st-term to .gitignore
Note: ST seems to call some chips with 436 medium plus and some high. It seemed
easier to name 436 high and 427 medium plus.