renamed LyricsApiBase to LyricsUtils
renamed maintenance tests so they are consistent with all other tests files
removed unused method from SongScraper, added tests for removing wikitext method, modyfied removing wikitext method so it leaves the last parameter from {{wp}} template
added test case with cleaning wikitext formatting
added test case with cleaning wikitext urls
refactored LyricsUtils::removeWikitextFromLyrics()
Merge pull request #3365 from Wikia/LYR-77

LYR-77 Improved wikitext clean up for lyrics