mowatch ignores custom extensions

[janslow]

I'm trying to use mowatch to test a TypeScript project (with *.ts files).

The mocha command I use is mocha --recursive --compilers ts:ts-node/register src, so that node uses ts-node to import TypeScript files and so that Mocha discovers .ts files.

However, mowatch hard codes the .js extension into globberFactory, so it doesn't find the source files and throws an error:

Error: Error: ENOENT: no such file or directory, stat 'src/**/*.spec.ts'
    at fatal (/Users/janslow/dev/cfl/cfl-npm/generator-npm/node_modules/mowatch/bin/mowatch.js:34:9)
    at /Users/janslow/dev/test/node_modules/mowatch/bin/mowatch.js:46:16
    at /Users/janslow/dev/test/node_modules/async/lib/async.js:52:16
    at /Users/janslow/dev/test/node_modules/async/lib/async.js:361:13
    at /Users/janslow/dev/test/node_modules/async/lib/async.js:52:16
    at done (/Users/janslow/dev/test/node_modules/async/lib/async.js:241:17)
    at /Users/janslow/dev/test/node_modules/async/lib/async.js:44:16
    at /Users/janslow/dev/test/node_modules/async/lib/async.js:358:17
    at /Users/janslow/dev/test/node_modules/mowatch/lib/index.js:54:16
    at /Users/janslow/dev/test/node_modules/async/lib/async.js:52:16

It would be useful if the --compilers (and probably --watch-extensions) was used to build the glob.