Fixed high CPU usage of `grunt dev`
Fixed high CPU usage of `grunt dev`

no issue
- exclude the `core/server/lib/members/static/auth` from the express reload watch task as it contains a large `node_modules` directory which caused `grunt-contrib-watch` to peg the CPU
- the directory only relates to static client-side files which do not require a server restart on change and ivereload is handled via the separate `preact watch` shell task

e10/Ghost,bitjson/Ghost,kevinansfield/Ghost,kevinansfield/Ghost,Kikobeats/Ghost,kevinansfield/Ghost,Kikobeats/Ghost,janvt/Ghost,Kikobeats/Ghost,JohnONolan/Ghost,Gargol/Ghost,JohnONolan/Ghost,ErisDS/Ghost,janvt/Ghost,Gargol/Ghost,e10/Ghost,TryGhost/Ghost,JohnONolan/Ghost,TryGhost/Ghost,TryGhost/Ghost,ErisDS/Ghost,ErisDS/Ghost,bitjson/Ghost