Add CraftBukkit 1.5 <-> MCP mappings

py zip-class-diff.py minecraft_server15.jar minecraft-server-1.5.jar | sort > 1.5/classes.srg
py jpdiff.py 1.5/classes.srg vanilla15 mc-dev15 | sort > 1.5/obf2cb.srg
py reverse-srg.py < 1.5/obf2cb.srg | sort > 1.5/cb2obf.srg
py chain.py ../mcp742-clean/conf/ 1.5/obf2cb.srg |sort > 1.5/cb2mcp.srg
py reverse-srg.py < 1.5/cb2mcp.srg | sort > 1.5/mcp2cb.srg
py chain.py ../FML/mcp/conf/ 1.5/obf2cb.srg | sort > 1.5/cb2pkgmcp.srg
py reverse-srg.py < 1.5/cb2pkgmcp.srg | sort > 1.5/pkgmcp2cb.srg
py chain.py ../FML/mcp/conf/joined.srg 1.5/obf2cb.srg | sort > 1.5/cb2num.srg
py reverse-srg.py < 1.5/cb2num.srg | sort > 1.5/num2cb.srg