Changed to newest version of QUAZIP 0.7

This change eliminates pointer error warning that occurred at build time
for old version of QUAZIP. A simple swap of the old code for the new
code has built with no errors or warning.s
added CMakeList for mimetype dir, so it'll appear in QT Creator
added mimetype to subdir list
added extra files needed for CMake to compile plugin properly
removed ; (semi-colon) from end of lines, a pedantic warning from cmake