Add bb-dump-latvian-translation.py

Dump latvian translations of french words passed in stdin
Add bb-add-latvian-word.py

Command to add a latvian page

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diplay latvian word in firefox before adding it

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>