Add documentation for the useCaseSensitiveFileNames option (#1227)
Add documentation for the useCaseSensitiveFileNames option (#1227)

Setting this option on projects with lots of files can reduce compilation time. Case-insensitivty requires normalization of file paths, which involves executing regex's. This shows up in the hot path of compilation profiling.
TypeStrong/ts-loader,jbrantly/ts-loader,jbrantly/ts-loader,TypeStrong/ts-loader,jbrantly/ts-loader