added optional 'reverse' parameter to Posts.getPostsByTid  and Topics.getTopicPosts (incoming signature adjustment for 0.4x)
upload changes, show progres in composer
Merge branch 'master' of https://github.com/designcreateplay/NodeBB
added missing file
closes #1016
resolved #997
Merge branch 'master' of github.com:designcreateplay/NodeBB
Added ability to change where themes are stored via themes_dir configuration option

themes_dir is resolved to be relative to the root of the NodeBB install.
Remove warnings about themes being out of date
Improved logging at startup
Added logging on start up detailing where themes are being loaded from.
Merge pull request #1020 from miksago/themes_dir

Implemented `themes_dir` configuration option.
fixed theme previews
minor fixes to paths accidentally introduced in #1020