add linter for capitalization + filepaths
need to escape '\'
replace '/' with '\' in paths
run the linter on shiny's example apps
make sure we strip comments before linting
augment lint message [inferredFile -> projectFile]
fix off-by-one error following rebase
Merge pull request #102 from rstudio/feature/linter-capitalization

add linter for capitalization + filepaths