message: Update the documentation - no more Boost
  This was missed when moving away from the Boost fallback - it is just a
  simple wrapper for the C++11 class now.
diff: @@ -24,12 +24,12 @@ namespace Core {
  /**
  * @class Mutex mutex.h <avogadro/core/mutex.h>
  - * @brief The Mutex class provides a simple wrapper for the C++11 or Boost mutex
  + * @brief The Mutex class provides a simple wrapper for the C++11 mutex
  * class
  * @author Marcus D. Hanwell
  *
  - * A very simple, and thin wrapper around the C++11 (or Boost fallback) mutex
  - * class, allowing for lock, tryLock and unlock.
  + * A very simple, and thin wrapper around the C++11 mutex class, allowing for
  + * lock, tryLock and unlock.
  */
  class AVOGADROCORE_EXPORT Mutex
  