Allow to run deployer from any dir, not necessarily the project root

Adds db pull timeout option

Add --no-implicit-cache-flush to sys:setup:run command

See: netz98/n98-magerun#850

Merge pull request #3 from azambon/master

Excludes the product image cache

Adds optimization parameter to import on db-pull task

Now even the "sitemaps" folder is a shared dir

Imporves README.md

Fixes setup run timeout usage

Initialize setup run timeout parameter

Adds setup run timeout parameter to magento:setup-run task