Add security patches section and add Shellshockl documentation
Adjust for 7187 and 6277
Merge commit 'refs/pull/43/head' of bits.linode.com:Linode/docs into shellshock
Fix output for checking the vulnerability for some distribution versions
small adjustments to shellshock guide
Merge commit 'refs/pull/43/head' of bits.linode.com:Linode/docs into shellshock
final tweaks to shellshock guide
Merge pull request #1 from afornuto/shellshock

Shellshock
Merge pull request #43 from drussell/master

Add security patches section and add Shellshock documentation
fixed published date on shellshock guide