Merge branch 'release-0.2'
Merge pull request #248 from tomrake/master

Google Charts for Amber
BugFix: Message categories could not be changed
Fixed issue #250
Merge pull request #252 from MFeldtmann/master

BugFix: method categories could not be changed
Fixed missing sources from Kernel-Methods.js
SmalltalkMethodContext faster instatiation.

SmalltalkMethodContext is instatiated very often,
so having .resume in .prototype helps, memory/gc-wise
as well as performance-wise.
DRYing Organizer creation.
Merge pull request #253 from herby/master

Small boot refactorings/optimizations.
server/FileServer.st: remove unused instance variable
server.js: specify port number on commandline

invocation:

node server.js -p <portNumber>
amberc: add Kernel-Announcements to KERNEL libraries
amberc: add Compiler-Exceptions to Compiler libraries
FileServer.st: add port back to instance variables
FileServer.st: add -p commandline option

node server/server.js -p 5000

will start the server to listen on port 5000
FileServer.st: add error handler on httpServer
FileServer.st: log to console if file not found
regenerate server.js
update broken Fork Me on GitHub graphics
Fixing removeMethod to remove category when empty.