Merged r7834 from trunk (#9566).
Merged r7780 from trunk (#9552).
Merged r7814 from trunk (#9577).
Merged r7971 from trunk (#9682).
Merged r7919 from trunk (#9448).
Merged r8103 from trunk (#9737).
Fixed that a cross-project custom query is not remembered inside project (#9738).
Adds an explicit error message for invalid YAML configuration file (#9748).
code layout clean up app/views/gantts/show.html.erb
Merged r8106 from trunk
remove trailing white-spaces from calendar-hr.js
