SerialTransfer

• Fix issue #33
• Save memory by using a single CRC calculating class across all Serial/SPI/I2CTransfer class instances

SerialTransfer

• Fix warnings for I2CTransfer.h so that everything compiles cleanly

SerialTransfer

• Massive update to change the overall structure of the library
  • Introduce Packet.h
    • Hardware agnostic library that serves as the base packetizing/parsing library the rest of the "hardware-level" libraries are based on
• Add I2C and SPI functionality
• Add examples for file transfer

SerialTransfer

• Update reamde
• Fix bugs in example sketches

SerialTransfer

• Update return type of tableLen_ to suppress warnings (see pr #26)

SerialTransfer

• Switch argument order for txObj() and rxObj()
• txObj() and rxObj() now returns next buffer index instead of # of processed bytes
• Update readme/examples for above changes
• Changed to MIT license

SerialTransfer

• len parameter for both rxObj and txObj is now automatically determined if index is not specified by the user
• RX examples now detect errors without magic numbers

SerialTransfer

Add access function for packet ID byte

SerialTransfer

Prevent all compile warnings

SerialTransfer

• Update status codes
• Add ability to specify callback functions
• Added tick() method
• Added automatic debug print functionality