add reset methods for orderBy, where, match, groupBy, options
add reset methods for orderBy, where, match, groupBy, options
remove require mysqli
require ConnectionInterface instead of Connection in SphinxQL
properly deal with multibyte characters, closes #33
Merge https://github.com/cntd/SphinxQL-Query-Builder into cntd-master
Merge branch 'cntd-master'

added individual reset methods
added resetWithinGroupOrderBy method
updated tests
added PHP 5.6 to travis tests
Improve ability of halfEscapeMatch() to fix potential negation and alternation errors