Fixed #45 -- add message queue class
Fixed #46 -- semaphore wrapper class
Fixed file to make remove compatible with link
Removed a printf debug line
Fixed #44 -- Fifo Device class added
Started work on #43 -- Fifo peek
Partial implementation of #43 -- Fifo peek
Fixed #12 - Token Class
Work on #25 - - check f_mount for errors
Fixed #52 - Add SD Card SPI driver
Work on #25 -- SD SPI integration
Update version info
Pulled bugs fixes from 1.4.1
Fixed #58 - seek for all Periph's
Merge branch 'master' into master-1.5.0-features
Work on #25 - integrating FAT (read working)
Progress on #25 - FATFS and SD Card

The basic implementation can read/write files.  Creating directories
needs to be tested.
Removed extraneous printf() statements
Fixed #25 -- FATFS with SD Card (re-entrant)
#58 updated to build with __link