winpr: disabled schannel test

not practicable for now since it requires local key setup
client/common: fixed TestClientRdpFile test

Unified ascii and unicode string handling.
Merge pull request #1597 from bmiklautz/tests

Fixed failing tests
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
channels/rdpsnd: add option for configuring audio quality mode
android toolchain: fixed cmake syntax warning
android toolchain: support for ndk r9b
channels/rdpsnd: add wlog debug output
libfreerdp-crypto: don't report SSL_ERROR_SYSCALL with errno value 0 as error
fix memory realloc size error.
fix name length to copy.
reformat coding styles.