Support for international characters on hashtags

Non exaustive list of accented characters taken from [Twitter text handling libraries][1]

[1]: https://github.com/twitter/twitter-text-java/blob/431b6ad44158c4a4a38d80d34df5b101ae2559fc/src/com/twitter/Regex.java
Fix Firefox OS detection. Fix #435
Adds a Dockerfile

This Dockerfile can be used for building a Docker image of Webogram that
launches a container with Node listening on port 8000.

This image uses the official nginx image as its base.
Updated DC5 ip
Merge branch 'pr/436'
Support for 3-letter hashtags
Fixed semicolon for hashtags
Merge branch 'pr/426'
Merge pull request #438 from tazjin/docker

Adds a Dockerfile
Merge branch 'master' of https://github.com/zhukov/webogram
Fixed pluralisation for realtime time

Closes #439
Upgraded jQuery to v1.11.1

Closes #432
Upgrade nanoscroller

Fixed bug with invalid nano-content width
Improved country select

Fixed multiple countries per country code - Closes #418
Auto-detect country code - Closes #384
Fixed page title unread counter

Closes #428
Autoupdate statuses with timer

Closes #445
Improved FxOS 1.1 PUSH notifications

Closes #413
Closes #373
Closes #441
Fixed FxOS 1.1 media attachment

Closes #419
Supported FxOS 'share' activity

Closes #377
No-emoji notifications

Closes #427