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
Updated DC5 ip
Merge branch 'pr/436'
Support for 3-letter hashtags
Fixed semicolon for hashtags
Merge branch 'pr/426'
Merge branch 'master' of https://github.com/zhukov/webogram