refacs; initialization, var-scope reduction, replace c-style casts, rm unused

* DBus.h, AudioOutputSpeech.cpp: initialize uninitialized members,
* d3d10.cpp: actually use assigned results for a dbg output
* lib.cpp, link.cpp: c-style to c++-style casts
* SpeexMark.cpp, ResampMark.cpp: rm unused var
* AGC.cpp, ResampMark.cpp:
rm unused var (ineffective return statement after prior return;
thus removing unused code - but someone check if sth. was missed there)
Merge pull request #124 from Kissaki/pr-refac

refacs; initialization, var-scope reduction, replace c-style casts, rm unused
add qt_hu.qm to mumble.pro project file

fixes broken build by 204affd97f36c1d27fdd3c2456490ef62872cfda
which introduced the dependency to qt_hu.qm
String freeze for 1.2.4.

* Update translation files
* Fix integration of Hungarian translation.
Fix typos in pt_BR translation after the string freeze
tests: update TestLink to build on OS X.
tests: .pro file cleanup.
plugins/link: make POSIX link work with Apple clang++ (Xcode 4.5).
Fix build regression with ASIO
QtMumble path
scripts/release.pl: special considerations for sbcelt.
scripts/release.pl: add sbcelt directories to fulldirs.
scripts/release.pl: make sure to archive files listed in OBJECTIVE_SOURCES.
macx: pro file fixes for release.pl.
macx: don't add scripts as a subdir, include it instead.
Updated Danish translation for 1.2.4 (#3581734)
Partial Dutch translation for 1.2.4 (#3581588)
Fix drag and drop regression introduced by Qt updated.

* Qt commit "Drag and drop icon does not update correctly on Windows." f6bf4b2baa91e55f40596bf3f2823b119fdfa5e0 introduced the issue.
Fix regression in RichTextEditor that prevent it from being completely emptied.

* Since Qt 4.8 QTextEdit always starts out with a <p..><br /></p> instead of <p..></p> first paragraph configuration. That confused our stripping logic which removes the first paragraph tags keeping their contents (and hence the <br>) intact. Now we skip the content of the first tag if it's marked with the qt empty style.
Remove license, readme and uninstaller shortcuts from application menu.

* In accordance with Microsoft best practices, see http://msdn.microsoft.com/library/windows/desktop/aa511447.aspx