Smart Package Manager 1.2.1

* Tweaked timeout option for pycurl-based fetcher so that it kills the
  connection based on the *activity* of the transference, rather than
  merely considering the elapsed time. [#389001]

* detectsys plugin must not try to do anything in case the configuration
  is in read-only mode, since its only task is precisely to modify the
  configuration in a permanent way to include detected channels. [#388577]

* - Change Makefile so that "make test" uses the same Python as the other
    targets, through the PYTHON variable. [#388023]
  - Inherit the PYTHON variable from the environment.

* remember the location of any existing old metadata files, so that they
  can be removed if their name changes (like when using createrepo with
  --unique-md-filenames). also refactor loader into function. [#302453]

* add sha256 checksum, as required by newer version of yum createrepo.
  the previous sha1 digest is missing from the new metadata generated.
  this requires the use of the hashlib module, available in python 2.5
  and later or as backports to the older pythons. with test. [#331935]

* fedora now allows unicode in provides, so encode these in utf-8.
  packaging policy change was introduced in rpm-4.6.0-7 [#337798]

* allow building the (C++) ksmarttray with automake-1.11 too [#424642]

* splitrelease method was missing from the non-compiled debver [#435342]

* fix the "nothing"-test-hanging bug, when /etc/smart/channels is not empty

* fix the forking-execvp bug, that killed all unit tests after "debpm".