fix some warnings

Fixes https://github.com/interconnectit/Search-Replace-DB/issues/87
Changed permissions to executable on srdb.cli.php
Added srdb.cli.php to composer binaries
Merge pull request #88 from Tarendai/master

fix warnings
Merge pull request #101 from mamchenkov/composer-executable

Composer executable
Provide basic autoloading / Fix strict standards

error #98
typo in readme.md

Readme fixes provided by BrainCrumbz on error #84.
Easier to just add these manually than try and merge them in.
Added the path to the include class #96

Added the path to the include class #96
Again easier manually add this than trying to manually merge this.