* fost-base 1a433f9...8f7c8ab (2):
  > Update the observers more often.
  > Allow `fostlib::future<>` instances to be compared for equality.
* fost-base 8f7c8ab...31f34c8 (3):
  > There is a new `fostlib::cli::monitor` function.
  > Futures now return `const&`s instead of copies of the value when they're dereferenced.
  > The meta data set on the progress for a task is now made available to the meter readings.
* fost-base 31f34c8...2e79174 (2):
  > We can't make use of C++11 features in this part of the code base.
  > Fixed the progress bar tests.