Update watchr dep (#151)
Update watchr dep (#151)

A dep of watchr is causing installs to fail, as per https://github.com/bevry/typechecker/issues/13

I've released v2.5.0 of watchr, so this will need to be updated. Watchr follows semver, so changed ~ to ^
eemeli/messageformat.js,SlexAxton/messageformat.js,cletusw/messageformat.js,cletusw/messageformat.js,eemeli/messageformat.js,messageformat/messageformat.js,SlexAxton/messageformat.js,messageformat/messageformat.js