added documentation for installing on Mac OS with Homebrew
move documentation
Merge pull request #14 from aantonop/master

Documentation on installing buttercoin (and all dependencies) on Mac OS X, using Homebrew.
Create INSTALL_LINUX.md
Update INSTALL_LINUX.md

rm bash
Update README.md
Merge pull request #15 from PartTimeLegend/linuxinstall

Linuxinstall
remove execute permissions on static files
Merge pull request #18 from RoboTeddy/remove-execute-permissions

remove execute permissions on static files