Removed configparser direct import

subj, to make compatibility between python2&3 a little bit more seamless

Check updates mechanism fix

Unfortunately, it wouldn't work right before. Now everything should be okay.

Missed a bug!

in a15 there is a bug that prevents swk from running.

Bugfixes

Various minor bugfixes
Check updates mechanism has been enabled for plugins

Dependency fix

removed configparser from requirements until further investigation

Check updates introduced

Introducing auto check for updates via pypi, can be turned off in config
fixed env and os search with Foreman

Foreman add classes cmds fix; ssh output cleanup

fixed broken parsing commands without arguments (lscls, lszbx),
cleaned up ssh output (if it began with '\n', a lot of empty strings were printed)
fixed broken addcls/addgcls foreman commands (they'd destroy every previously existing classes links)

3rd party utilities integration

added stdin reading functionality
fixed swk_foreman failing to install on 2.7
added 'connected hosts' to frmn desc command
changed default logging level to error
optimized frmn api queries a little bit

3 new Foreman cmds; identityfile and user support for SSH

Added srch, srchg and desc commands to Foreman plugin;
added correct id file and user support for ssh based commands, see swk.ini.

First PyPi release

Made command args parsing a bit more logical,
some minor bugfixes,
refactored filenames.