Ideas for Google Summer of Code/Apertium website improvements

The Apertium translation website is pretty cool, but we can make it even cooler. This project consists of various website improvement tasks.

Tasks

Add "dictionary lookup" mode for single-word translations.
- Should give synonyms and alternative translations.
- It should rank the translations by likelihood.
Add a mode that colours the resulting translation depending on how reliable it is.
- One possibility would be for language pairs to have different colours depending on WER or something.
Make language detection work properly and do "did you mean" style if people choose an unlikely source language.
An "improve this translation" option.
"website translation" option.

Install the Apertium website with some language pairs on a server under your control, test that it works correctly.