Feature release with many small tweaks

Update with many small tweaks, making the library a little more easy to use. This is a minor release, because a single, non-critical interface was changed

*Added ..ln versions of log functions
*Additional formatting characters &
*Logging of printable objects (such as IP addresses)
*x86 & x64 compatibility (e.g. for continuous testing)
*Prefix & suffix receive loglevel (minor but breaking change of not critical interface)
*Updated examples
*Code & documentation clean ups & bug fixes

ArduinoLog 1.0.3

Much overdue release of ArduinoLog 1.0.3 release

It comes with many small fixes and some additional features.

First release of ArduinoLog library

First release of ArduinoLog. ArduinoLog is a minimalistic framework to help the programmer output log statements to an output of choice, fashioned after extensive logging libraries such as log4cpp ,log4j and log4net. In case of problems with an application, it is helpful to enable logging so that the problem can be located. ArduinoLog is designed so that log statements can remain in the code with minimal performance cost. In order to facilitate this the loglevel can be adjusted, and (if your code is completely tested) all logging code can be compiled out.