fixing readme indentation

updated version on package.json

updated customtarget default to object to avoid error on trying to access property of undefined

updated the way customTarget works to allow to specify destination for individual files based on their extension and defaulting to local merge if they dont exist or are not supplied

updating readme

updating readme

added default to '{}' in order to avoid undefined error when option is not supplied

fixing merge

fixing readme indentation

updated version on package.json

updated customtarget default to object to avoid error on trying to access property of undefined

updated the way customTarget works to allow to specify destination for individual files based on their extension and defaulting to local merge if they dont exist or are not supplied

updating readme

updating readme