Merge pull request #11 from pez4brian/master

Convert boxblur and movitblur to use QML
Update English translation.
Fix couple of QML runtime errors since addition of fades.
Use tooltips for track header buttons instead of mouse-over.
Fix track head buttons wiggling on mouse-over.
Prevent a timeline corruption bug.
Reset all encode options before applying a preset.
Give the encode presets list a taller minimum height.
Fix skimming in timeline while shift is pressed.
Use a proper toolbar for timeline instead of a row of buttons.
Add search box for encode presets.
Add audio waveform display toggle to timeline menu.
Fix Source player automatically playing when switching tabs.
Reorient Encode panel horizontally.

Move the presets list left of the tabs.
Default Encode panel on the left side.

Also, disconnect chaining the Jobs panel visibility to the Encode panel,
and default the Jobs abd and History panels on the right side.
Disable video mode options on encode preset with profile info.

This helps prevent people from changing these to invalid values.
Also, add a Reset button to set encode options to default values and re-
Also reset video values tab when click Reset in Encode.
Update Czech, German, and Portugese translations.
Add File > Open XML As Clip menu action.
Add basic cross-fade transition.