Update README.md
Update the README.md for OSX install guide

The OSX installation settings are not clearly documented. I added some
simple steps which I used to install mediacenterjs for development.
Some minor changes to README.md
Merge pull request #75 from chinmayapadhi/master

Some modifications for README.md for OSX installation
Added Swedish translation
Added Swedish translation
Merge pull request #76 from TankMasterRL/master

Add Swedish translation
Added Swedish
Update README.md
Update README.md
Update README.md
Update README.md
Update README.md
Merge branch 'master' into refactor-media-indexing