Cleaned up code a bunch, but haven't gotten 8.0mhz working on digispark yet.

Try to compile this targeting 8mhz and get error:

/Users/bluebie/Documents/Arduino/libraries/Adafruit_NeoPixel/Adafruit_NeoPixel.cpp:316:(.text._ZN17Adafruit_NeoPixel4showEv+0x13c): relocation truncated to fit: R_AVR_7_PCREL against `no symbol'