Initial implementation of regex, fix Issue #108.
Update Translation.
Change the minimum length of Sina URL's key to 5.

Mostly, the key of a Sina Short URL, encoded with 6 to 7 chars. But,
some older URL are encoded in 5 chars. So, we have to change the minimum
length of the regex.
The best solution of Issue #50. Remove the hack.

All of the errors describe in Issue #50 are caused by the garbage
collector.

When the Python interpreter exits it garbage collects those objects that
it can. This means that any corresponding C++ instances and C structures
owned by Python are destroyed. Unfortunately this happens in an
unpredictable order and so can cause memory faults within the wrapped
library.

We used os._exit() as a hack to skip the garbage collection, but it is
not the correct: other cleanup procedure won't run too.

Disable the feature, let us to get rid of it.
Merge branch 'experimental' of github.com:WeCase/WeCase into experimental
Merge branch 'dev-0.06' into experimental