Added linux x64 support
Add env variable __ANDROID__ to conditions
Merge pull request #40 from linqcan/fixes

Add env variable __ANDROID__ to conditions
Fix typo in variable __ANDROID__
Merge pull request #41 from linqcan/fixes

Fix typo in variable __ANDROID__
Support for 64-bit host and toolchain, tested with NDK r8e and Boost 1.53
Merge remote-tracking branch 'lkalneus/master' into devel
Fixes undefined references when using Boost.Filesystem.

Currently only in 1.49 version of boost.
Re-add support for using a 32bit NDK on 64bit hosts

This is pretty much same as commit
8ae6be27d26c5174dfcb101dd31b98c5620e5b4f
from Michael Zoech.
Add install prefix
Support for NDK r9 by @pelya.

Conflicts:
	build-android.sh
Merge remote-tracking branch 'linqcan/fr-install' into devel
Reverting to 18092dda (~8 commits)

Last few commits contained some usefull code but
some debug code as well. I've cherry picked those
useful commits to the main repo, so it's no biggie.
Merge branch 'master' of https://github.com/MysticTreeGames/Boost-for-Android