remove filter for gzipping

Reason, compressible already has rules on what to compress, which is what connect uses to determine whether to compress the response:

https://github.com/expressjs/compressible/blob/master/index.js#L7
Removed linting steps for production environment.
Removed grunt force option.

Since we are no longer linting in production by default, this will not be necessary.
Merge pull request #422 from TJkrusinski/master

remove filter for gzipping
update grunt paths, exlude node_modules from nodemon
Merge branch 'prevent_production_lenting' of https://github.com/egdelwonk/mean into egdelwonk-prevent_production_lenting

# By William Golden
# Via William Golden
* 'prevent_production_lenting' of https://github.com/egdelwonk/mean:
  Removed grunt force option.
  Removed linting steps for production environment.

Conflicts:
	Gruntfile.js
grunt: fix html and css paths
Merge branch 'master' of https://github.com/linnovate/mean