feat(components): new start method to start components from a specific DOM place

This allow us to start components that belongs to a specific place in the DOM and later on (at any time) we could start a different set of components belonging to a different place of the DOM. Once a component have been initialized by Pestle, it'll get marked as initialized so further calls to the start method won't try to initalize them again.
chore(package): remove handlebars and update package.json info
chore(package): update dev depedencies
chore(readme): add dependency status