Changes

Changes to make gluegen build with NDK r7

- A bug in cpptasks was getting in the way of a working build with NDK
  r7. A local patch to cpptasks fixed the bug.
  - The patch is added as make/lib/cpptasks_gcclinker.patch and applies
    cleanly to cpptasts @ revision 177.
  - The result of building cpptasks r177 with this patch is part of the
    commit as well.
- Cleaned up and simplified the android cross-compile script in
  make/scripts.
- Cleaned up arguments passed to gcc for compiling and linking to look
  more like the command lines used for building NDK samples.
  - Some differences are necessary as cpptasks won't let us specify any
    binary other than 'gcc' for building. See
    gluegen-cpptasks-android-armv7.xml for comments on the matter.
- Thinking forward to x86 support, generalized jogamp-androidtasks.xml
  to install the gluegen shared library in a subdirectory of image/lib
  named for the targetted ABI for packaging with aapt. This file is
  no-longer ARM-specific.

Update and cleanup cpptasks build & archive.

Including Edwin Vane's work in commit d51d2aaad01d1c8188193a7913c6ef0fc38ea798

android crosscompile script, use android-ndk-r7b but favor generic android-ndk (sym-link)

cpptasks: Cleanup patch file and move single patches to obsolete for clarification

make.gluegen.all.linux-armv7-cross.sh: Use common TARGET_PLATFORM_ROOT

android build/test fixes and refinement

remote test fix:
  - run targetcommand w/ explicit root via 'su'
  - rsync: more excludes, only use '-rt'
  - explicit chmod 644 on results
  - adb commands include naming of remote machine: -s ${env.TARGET_IP}:${env.TARGET_ADB_PORT}

GlueGen-cpptasks-android-armv7:
  - use unique project name (warning)
  - gcc +
     -fpic
     -D__unix__
  - ld +
     -fpic
     -nostdlib
     -Bdynamic
     -Wl,-dynamic-linker,/system/bin/linker
     -Wl,-z,nocopyreloc
     explicit add 'dl' to list of libs

build: Move c.compiler.debug, c.compiler.use-debug and c.compiler.optimise from build.xml -> gluegen-cpptasks-base.xml

- unifies definition
- echo values

android test: Specify 'java.io.tempdir' and add TestJarsInJar.apk / Disable most of tests in TestJarUtil

TempJarCache: Check for NULL jarURL and reuse contains queries

Don't build and use gluegen.apk (compile time only) ; Don't test classloader -> JarURL on Android

All [remaining] tests passed on Android!

gluegen-cpptasks-android-armv7: Add 'gluegen.cpptasks.detect.os.custom' target which makes it self-contained

build script and jenkins-node startup-script solely use env-vars.

Remove env. TARGET_ARCH, which was same as TARGET_TRIPPLE.