README: update initial instruction.

Homebrew handles the prefixes automatically.
Update from Java6 to Java7

Fixes #2189
iExplorer 3.2.3.2
Armoury 0.90-beta
Insync 1.0.26.31705
Prepos 4.0.1
Update sophos-antivirus.rb

The binary seems to have been changed.
I downloaded it multiple times to verify that new SHA1sum.
Merge pull request #2212 from ashishb/patch-1

Update sophos-antivirus sha1
MPlayerX 1.0.21
Merge pull request #2213 from ahbeng/mplayerx

MPlayerX 1.0.21
Add Movist fork

Fork of multimedia player Movist. Original developer works on
Mac App Store version.
Merge pull request #2215 from niksy/movist-fork

Add Movist fork
Updated to version 0.8.3
Isolator 4.9beta
Merge pull request #2219 from majksner/patch-1

Lightpaper 0.8.3
Version fix
Merge pull request #2223 from majksner/patch-2

Correct Lightpaper version number
Merge pull request #2222 from leoj3n/isolator-4.9beta

Isolator 4.9beta
Correct sha1 key
updated appcode to version 2.5.4