Fix /system/app/$app.odex not updated issue

$(built_odex) depends on $(LOCAL_BUILT_MODULE) but doesn't have any build
recipe. It is built by the rules of $(LOCAL_BUILT_MODULE) that results in
a subtle bug: $(built_odex) is always newer than $(LOCAL_BUILT_MODULE)
if $(LOCAL_BUILT_MODULE) rebuilt. Therefore 'make' thinks the targets
(/system/app/$app.odex) depending on $(built_odex) don't need to be updated.
It seems an allegedly optimization bug of 'make'.

The simple fix is to explicitly add $(LOCAL_BUILT_MODULE) as a dependency
of $(installed_odex).

Conflicts:
	core/base_rules.mk

Change-Id: Ia62695eeb9a9709f7115301cbf27eb1fd77a1573
envsetup.sh: add missing dquotes

Change-Id: Ic86a5dd36b0f32cd7dc4d2f9c187566398796ed6
repopick: gracefully handle empty/non-JSON server responses

Change-Id: Idbabdbfb4a910de0ad405f02b2a84cf2bc9ef3dc
repopick: remove the superfluous information from date

  * '2011-11-17 06:54:52.000000000' -> '2011-11-17 06:54:52'

Change-Id: I73d37c9aba13d4be6b4d2d2fc0f2f83971a3e77b
repopick: let's be nice to our servers :)

* Prefer fetching changes from GitHub, and if that fails,
  silently fall-back to Gerrit.

Change-Id: Ibf68d4b69a7e8dbee2adb8f7f4250340b8be629c