compiler warnings

[Martin Gieseking]

I'm currently packaging EqualX for Fedora. During the review process [1] a couple of issues have been raised that need some attention. The compiler reports a couple of warnings telling that some non-void methods lack a return statement, e.g:

src/LatexEditor.cpp: In member function 'bool LatexEditor::findNext()':
src/LatexEditor.cpp:210:1: warning: no return statement in function returning non-void [-Wreturn-type]
src/LatexEditor.cpp: In member function 'bool LatexEditor::findPrevious()':
src/LatexEditor.cpp:217:1: warning: no return statement in function returning non-void [-Wreturn-type]

Also, the order of the initializer list of MainWindow::MainWindow() should be corrected.
I've attached two patches that fix the issues. Please have a look if they are sane.

[1] https://bugzilla.redhat.com/show_bug.cgi?id=782786