Move "twitterinfo.h" into project directory

before:
- "twitterinfo.h" was in "../KanmusuMemoryTwitter/" directory

after:
- "twitterinfo.h" is in this project root directory
- add "twitterinfo.h" to .gitignore
Merge pull request #37 from nowsprinting/move-twitterinfo

Move "twitterinfo.h" into project directory