novel-pinyin 0.2.3 released

Done Items:
1. Import the entire scim-pinyin phrases as corpus.
2. Better HMM parameter adjusts.
3. Better candidates adjusts.
4. Add version check.
5. Add data file corruption detection.
6. Protect against integer overflow.

Todo Items:
A input pad module for temporarily input Chinese characters by strokes lookup.
(Maybe this can be done in Hacker Week.)