added i386-elf- formulas
modified hash
removed gcc-4.2 dependency
Revert "removed gcc-4.2 dependency"

This reverts commit 83898af48ff9a4ed9db061e8a0d2c3fbced4fc58.
Checked all working
gdb now uses default apple gcc
Add formulas for i386-elf-jos toolchain
Merge pull request #1 from t3rm1n4l/master

Add formulas for i386-elf-jos toolchain
Merge pull request #1 from jinmel/master

Please merge to newer version