Added shell scripts
Added a signal to release waiting UART write threads
Supposedly fixes the UART, but crashes on actual execution?
Worked on UART stoppage
Added debugret.c to the Makerules
Added shell script for starting GDB
Merge branch 'filesystem' of https://github.com/jnwatts/xinu-arm into filesystem
Removed UART fix
Started linked list and FS headers
Moved list functions and fleshed out filesystem headers
Changed the ObjectTypes list to a single root
Added hash table implementation
More work on the native in-memory filesystem
Fixed issues in hashtable and list
Added main FS API

Added user-visible FS APIs
Moved root namespace VFS into separate file
Changed HashGet to return an error code
Added data structures to makerules
Fixed header declaration
Merged in shell changes
Finished FS enumeration logic
Added Makerules