Write profile script to simplify work with executables from composer/npm dependencies

Just go to the project root directory and execute:
        source profile
or
        . profile

Now all executables are available.
Add CodeSniffer to enforce codding standards

Add CodeSniffer dependency as well as pre-commit hook and travis script
Fix all code-style errors
Merge pull request #11 from vadimromanenko/path_script

Write profile script to simplify work with executables from composer/npm dependencies