Fix: Method definition for 'ExportLRC' not found
Fix some bugs caused by autorelase
Fix: Memory leak caused by not releasing _convertManager
Merge pull request #20 from ym/master

修正了一些由 autorelease 导致的问题并处理了一个潜在的内存泄露
Merge commit '0e819fdbaca5c1fa62c48eafb9cf09c44f6fc3ed'

Conflicts:
	DynamicLyrics/LyricX/LyricXAppDelegate.h