In staff type dlg box, only displays staff types from groups relevant to staff instrument.

Also removes the default guitar string data, which does not make sense for non-stringed instruments (stringed instruments are assumed to have proper string data in instruments.xml anyway)
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Fix tab order and buddies of staff type dlg box
Renamed stafftype.ui to editstafftype.ui
Apply template filtering to instrument wizard too.

Also fix selection of current template in instrument type combo box.
Fix build error.
Fix tests (maybe...)
More test fixes...
Fix crash when adding to the Instrument wizard a new instrument without an associated preset.
update the free serif fonts, ttf are generated by fontforge 20120714 on windows from the sfd files
Merge pull request #907 from mgavioli/relevant_staff_types

Staff type dlg box: Relevant staff templates only
fix #21841: Score tab and navigator remains after closing a score
change Windows build to use Qt-5.3
fix SCRIPT_INTERFACE use in plugin framework
move default paper size setting from libmscore to mscore
hide Chord Articulation editor behind the experimental flag
Merge pull request #913 from Jojo-Schmitz/Qt-5.3

change Windows build to use Qt-5.3
update measure properties + parts
try travis artefact go implementation
add $HOME/bin to the PATH for travis artefacts