update for 2014

README

@@ -26,7 +26,7 @@ In addition, we are grateful for the patches contributed by Greg
 Price, Yandong Mao, and Hitoshi Mitake.
 
 The code in the files that constitute xv6 is
-Copyright 2006-2012 Frans Kaashoek, Robert Morris, and Russ Cox.
+Copyright 2006-2014 Frans Kaashoek, Robert Morris, and Russ Cox.
 
 ERROR REPORTS
 
@@ -38,13 +38,10 @@ BUILDING AND RUNNING XV6
 To build xv6 on an x86 ELF machine (like Linux or FreeBSD), run "make".
 On non-x86 or non-ELF machines (like OS X, even on x86), you will
 need to install a cross-compiler gcc suite capable of producing x86 ELF
-binaries.  See http://pdos.csail.mit.edu/6.828/2012/tools.html.
+binaries.  See http://pdos.csail.mit.edu/6.828/2014/tools.html.
 Then run "make TOOLPREFIX=i386-jos-elf-".
 
-To run xv6, you can use the Bochs or QEMU PC simulators. Bochs makes
-debugging easier, but QEMU is much faster. To run in Bochs, run "make
-bochs" and then type "c" at the bochs prompt. To run in QEMU, run
-"make qemu".
+To run xv6, install the QEMU PC simulators.  To run in QEMU, run "make qemu".
 
 To create a typeset version of the code, run "make xv6.pdf".  This
 requires the "mpage" utility.  See http://www.mesa.nl/pub/mpage/.