Revert "aapt: localizations: be more aggressive"

This reverts commit 0fe8aa1f72765006e5f955e7a5d2c7c7ac6a8c1d.
Revert "aapt: allow toggling "errors instead of warnings""

This reverts commit 6de16aeeecaf87cbc5a9b11ac43d449a9fff724e.
aapt: allow toggling "errors instead of warnings"

* This patch makes the default behaviour same as AOSP,
  treating untranslatable strings in any but the default
  locale as warnings.
* Setting the environment variable AAPT_ERROR_ON_WARNING to
  anything will make those warnings, errors.

Signed-off-by: Chirayu Desai <cdesai@cyanogenmod.org>
Change-Id: I7da98d277495a7646ad64ba2f7e6a6bf14290f98

Conflicts:
	tools/aapt/ResourceTable.cpp
Revert "aapt: allow toggling "errors instead of warnings""

This reverts commit 482eb4adb472c3d68b0ebeea2aacdc48f28941c4.
aapt: localizations: be more aggressive

* errors instead of warnings for:
  * A localized string for which no default-locale version exist.
  * A localized translation of an translateable="false" string.

Change-Id: Ib700fe323019f285f5a1931fe96500b2de03106b
aapt: allow toggling "errors instead of warnings"

* This patch makes the default behaviour same as AOSP,
  treating untranslatable strings in any but the default
  locale as warnings.
* Setting the environment variable AAPT_ERROR_ON_WARNING to
  anything will make those warnings, errors.

Signed-off-by: Chirayu Desai <cdesai@cyanogenmod.org>
Change-Id: I7da98d277495a7646ad64ba2f7e6a6bf14290f98