Renamed README to README.md and added build status from Travis.
Update configfile.cpp

Fix of a mistake, making it impossible to use config file in current dir.
Merge pull request #589 from yglukhov/patch-1

Update configfile.cpp
Travis: Install gcc 4.8 and clang 3.4.

This is required for LLVM 3.5.
Add Krait cpu for detection of ARM architecture version.
Fix unresolved reference with shared libldc.so