Added script to automate gprof reporting.
Updated script to set up external android libraries.
Updated android build readme.
Updated readme.
android build: generate gprof file only if WITH_GPROF
android build: ignore renderscript toolchain

When detecting toolchains ignore renderscript because its not a
compiler toolchain.
android build: Fixed program path detection
android build: fixes for out of tree builds

Fixed the last places to be able to build android
out of tree with Unix Makefiles generator.

Note: When using eclipse use in source tree builds.
core: don't use c99 style initialization

fixes #1602
Merge branch 'build_fixes' of https://github.com/bmiklautz/FreeRDP