Changes

Lock Cleanup (API Change)

- LockExt -> ThreadLock - clarifying semantics (API Change)

- ThreadLock: Remove isOwner(), use isOwner(Thread.currentThread)

- adding @Override

IOUtil: Better resource location debug info; RunnableTask adds 'flush()' method to flush a pending task (lock that is).

Minor cleanup of JavaEmitter

Use armv6 optimization for armhf to stay compatible with the new Raspberry Pi Raspbian distribution.

Change/Lower ARM Requierements for GNU/Linux & Android-GNU/Linux ARM: ARMv7hf -> ARMv6hf, ARMv7-soft -> ARMv5te/ARMV6 (soft)

 platform build config files:
   lib/gluegen-cpptasks-linux-armv7.xml   -> lib/gluegen-cpptasks-linux-armv6.xml
   lib/gluegen-cpptasks-linux-armv7hf.xml -> lib/gluegen-cpptasks-linux-armv6hf.xml

 properties:
   isLinuxARMv7             -> isLinuxARMv6
   isLinuxARMv7Armel        -> isLinuxARMv6Armel
   isLinuxARMv7Armhf        -> isLinuxARMv6Armhf
   isAndroidARMv7           -> isAndroidARMv6
   isAndroidARMv7Armel      -> isAndroidARMv6Armel
   isAndroidARMv7Armhf      -> isAndroidARMv6Armhf

 targets:
   compiler.cfg.linux.armv7 -> compiler.cfg.linux.armv6
   linker.cfg.linux.armv7   -> linker.cfg.linux.armv6

 compiler.cfg.linux.armv6:
      <compilerarg value="-fpic" />
      <compilerarg value="-march=armv5te" />
      <compilerarg value="-marm" />
      <compilerarg value="-mfloat-abi=softfp" />
      <linkerarg value="-fpic" />
      <linkerarg value="-march=armv5te" />
      <linkerarg value="-marm" />
      <linkerarg value="-mfloat-abi=softfp" />
      <linkerarg value="-nostdlib" />
      <linkerarg value="-Bdynamic" />

 compiler.cfg.linux.armv6hf:
      <compilerarg value="-fpic" />
      <compilerarg value="-march=armv6" />
      <compilerarg value="-marm" />
      <compilerarg value="-mfloat-abi=hard" />
      <linkerarg value="-fpic" />
      <linkerarg value="-march=armv6" />
      <linkerarg value="-marm" />
      <linkerarg value="-mfloat-abi=hard" />
      <linkerarg value="-nostdlib" />
      <linkerarg value="-Bdynamic" />

 gluegen-cpptasks-android-armv6.xml:
      <compilerarg value="-fpic" />
      <compilerarg value="-march=armv6" />
      <compilerarg value="-mfloat-abi=softfp" />
      <compilerarg value="-marm" />

      <linkerarg value="-march=armv6" />
      <linkerarg value="-mfloat-abi=softfp" />
      <linkerarg value="-marm" />
      <linkerarg value="-nostdlib" />
      <linkerarg value="-Bdynamic" />

JNLP: Cache gluegen-rt-natives for linux-armv6 and linux-armv6hf.

Due to the lack of OS Arch and ABI detection in JNLP launchers
force us download both armv6 armel and armv6hf armhf ABI jars on ARM.

Revert "JNLP: Cache gluegen-rt-natives for linux-armv6 and linux-armv6hf."

This reverts commit 56dad6015bce0c9f11fdb1120fec77cc2e0a22fc.

I have merged this patch w/o dbl checking whether it was well tested.
Put this on hold until further inspection on ARM hard/soft.

IMHO the native JAR lib loading mechanism should take care of loading the
right native libraries. This details actually would allow us
to drop all native library references in the base JNLP files.

Allow the custom user gluegen property file being specified by env var GLUEGEN_PROPERTIES_FILE -> property gluegen.user.properties.file ; Use props for android keystore values

Android: Bump version.code: 914011