init import
add readme.md
modify readme.md
Update readme.md and documents
Update readme.md
Update readme.md
1.Support appender field map collection.
2.Fix inherit namespace invalid
3.Add StorgeAppender and SqliteAppender
4.Modify appender interface
5.Add pattern convertor cache
6.Update readme.md
1.Update documents file.
2.Modify environment check.
3.Modify readme.md
1.Update readme.md
2.Fix the space behind token is lost when parse pattern.
3.Add %e and %E to output exception stack information. Can be used for
sqlite appender and other storage appenders.
4.Add stream appender's encoding.
5.Update file appender. 
6.Add logd.properties head line checking.
1.Update readme.md
2.Update default logger
3.Add regex match filter.
1.Update documents
2.Update version code
Update readme.md
1.Update README.MD
2.Add logger buffer interface.
3.Add check current level
4.Add inherit setting interface
Update version code
Update documents
1.Add some logger's interface
2.Add LevelMatchFilter
3.Modify logger thread delay sleep number.
4.Update README.MD
1.Add android crash logs handler.
2.Update documents.
Update version code
1.Fix AndroidAppender attribute 'layer' is invalid.
2.Fix some problem when log null message.
3.Fix occur some problem when add, remove, get appender asynchronously.
4.Add interface for getting or removing appender.
Update documents