added function to remove assets before slug compilation
branding the output so I can figure out why this doesn\'t work
kept asset-specific deletion code and went super generic by using a .lateslugignore strategy for deletions
Readme file now mentions .lateslugignore file
fixed a problem where not having a .lateslugignore would cause the buildpack to fail
Merge branch 'master' of https://github.com/pavangupta/heroku-buildpack-ruby-lateslugignore
Merge remote branch 'upstream/master'
Link to details about lateslugignore added
cleaned up for a pull request
Merge commit 'c810858'