Change gerrit Preference onClick from Browser link to apk

Patch Set 2: fix build
Patch Set 3: keep com.fima in progaurd
Patch Set 4: whitespace removal
Patch Set 5: add no history flag to launch intent
Patch Set 6: revert Patch Set 5... bad idea.

Change-Id: I8e35d8fc91913ca6457e164bc2ffad9c0163069d