libARA does not compile on MacOSX

[mfrey]

If you try to compile libARA on MacOSX 10.9 this results in the following error

$ make
Compiling src//core/AbstractARAClient.cpp
In file included from src//core/AbstractARAClient.cpp:5:
In file included from include/AbstractARAClient.h:8:
In file included from include/ARAMacros.h:14:
In file included from include/Address.h:9:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/sstream:174:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/ostream:131:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/ios:216:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__locale:18:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/mutex:176:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__mutex_base:15:
In file included from /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/chrono:279:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/ctime:56:9: error: no member named
      'clock_t' in the global namespace
using ::clock_t;
      ~~^

[mfrey]

The issue is more or less obvious. We have our own notion of time in libARA which is defined in Time.h (and corresponding class Time). Unfortunately, the MacOSX file system is case insensitive, meaning that this conflicts with the existing time.h in /usr/include. Basically we have to rename the header and class to something else in order to avoid this conflict!