Thrift --> 0.9.1
   Cassandra --> 1.2.10
   OpenIPMI --> 2.0.19

Adds IPMIPusher to the master branch.

them, Boost 1.54.0 is no longer a problem.

ptr containers during destruction (boost mutex assertion fails).

This results in a much cleaner collectagent.cpp file and main function.
However, further cleanups are necessary and the respective TODOs can be
found in the code.

Fixed a bug in the SimpleMQTTServer that would lead to message corruption when a message is being decoded from multiple read()s.

FilePusher now accepts a topic string at the command line.

get stuck due to the messageThread not yielding and hogging the fdsMtx
lock. This caused long waiting times for new connections to be
accept()ed.

Cross platform issues compiling C++11 code (Mac OS has two C++ standard libraries, only one supports C++11 but Thrift fails to build with it).
Fix: Replace C++11 system_error with Boost system_error.
Some other minor fixes.

Removed mosquitto dependency entirely. Started reworking collectagent main routines and message handling.