fixed sortedSetRevRangeByScore test
closed #1375
removing unnecessary return
Merge branch 'master' of https://github.com/designcreateplay/NodeBB

Conflicts:
	tests/database.js
some more language strings and account.js refactor
more refactor
more work for #1368
linting install.js
secondary_database attempt
fixed #1365
if no icon is selected for a category icon will be empty string
allowing plugins to define new sounds -- woot.

Also moving the core sounds into a separate package, soundpack-default
allowing plugins to define new sounds -- woot.

Also moving the core sounds into a separate package, soundpack-default
Merge branch 'plugin-sounds'
load sounds on demand, refactored sounds
removed some unused translator requires
translator refactor

no longer loads all language files on startup
added American English to languages
latest translations
added sounds folder to gitignore