Move bDumpFrames to SConfig (and it's references)
TASInputDlg: Fix some potential uninitialized variable warnings.

Also guard against null (even if it doesn't happen it stops more warnings if someone compiles with -Wall or runs analysis with clang.
Fix XFB scaling in D3D
Merge pull request #1274 from lioncash/uninit

TASInputDlg: Fix some potential uninitialized variable warnings.
Merge pull request #1272 from RisingFog/sconfig-dump-frames

Move bDumpFrames to SConfig (and it's references)
Merge pull request #1290 from lioncash/xfb

Fix XFB scaling in D3D
Merge branch 'master' of https://github.com/dolphin-emu/dolphin into VR-Hydra

Conflicts:
	Source/Core/VideoBackends/D3D/Render.cpp