bump version
Update README.md

Add an initial use case for the plugin
Update README.md
added gulpplugin keyword
Merge branch 'master' of https://github.com/AntouanK/gulp-wrapper
remove unused 'gulp' devDependency
bump version
readme.md modification, API documentation added
Merge branch 'dev'
bump to 0.1.4
Update .travis.yml

- remove 0.9 version
fix properly the MS Windows path names
Merge branch 'master' of https://github.com/AntouanK/gulp-wrapper
add the fix in the right place
- handle case where header or footer can be a function. if so, execute it with `file` as an argument, and pass the output to the replacement value
- bump version to 0.1.5
- test the path of the file, and whether it's passed correctly
- update documentation
Merge pull request #2 from AntouanK/functionize

`header` and `footer` can now be functions