parametrized syntax checker

Scan the whole source tree when invoked without parameters, check
specified files when a list of files is passed in parameters.
Copy and append key to authorized_keys for users
Merge pull request #541 from Zipfer/ssh_keys

Copy and append key to authorized_keys for users
Merge pull request #538 from xarses/syntax-check-parametrized

parametrized syntax checker
Generete Fuel UUID during master node installation
Generate Fuel UUID using 'uuidgen' tool
Fix typo
Read Fuel key from /etc/fuel-uuid
FIX: duplicate declaration
Merge pull request #545 from xenolog/PR3

FIX: duplicate declaration
fuel cli link
Merge pull request #544 from e0ne/fuel-key

Fuel key generation
proper nail uri
Merge pull request #549 from dmi-try/fuel-cli

fuel cli symlink
Merge branch 'ubuntu-3.2-WIP' of github.com:Mirantis/fuel into ubuntu-3.2-WIP
Merge branch 'master' into ubuntu-3.2-WIP