Code Hygiene: remove deprecated code

pep8 reports two deprecated python constructs:

    W601 .has_key() is deprecated, use 'in'
    W603 '<>' is deprecated, use '!='
waptservice : reload config file wapt-get.ini if update (every poll_timeout so 10s by default)
waptray subscribe to all events from waptservice
waptconsole : cleanup in error handling
update waptstarter.iss setup with service
open wapt config file as administrator with notepad (to deal with spaces in path)
double quotes for waptservice install parameters in wapt.iss
removed unused dateutil lib
Merge pull request #6 from hashar/cleanup-deprecations

Code Hygiene: remove deprecated code
removed dateutil dependency from waptservice
removed ununsed pythonwin and pywin32_system32
added useful exe
0.8.26
bugfix import error private_key_has_password
unchecked use_hostpackages for waptstarter
added parameter use_hostpackages to allow/deny automatic host management through fqdn
updated some unitary tests
bugfix waptserver on windows, use nssm for windows waptserver service
restored iss for waptserversetup
removed pil, dateutil, and pywin libraries
open wapt config file as administrator with notepad (to deal with spaces in path)
double quotes for wapttray / show ini file path
double quotes for parameter in wapt.iss for waptservice install
waptserver debian package : include flask, werkzeug, jinja in local wapt lib
removed isapi, subprocess32 from wapt local libs
added set_environ_variable to setup_helpers (request from fvolpi ;) )
added Wapt.as_dict
added conflicts attribute in control file and db (upgrade of db structure required)
cached write of _runstatus to avoid sqlite write every 5s
added cleanup_session_setup
reworked duplicate_package
add psproj file for every package edit, not only new one
forget_packages function
don't build package when command line duplicate
wapt_base_dir parameter in psproj template
requests 2.2.1
prototype waptexit.exe to apply upgrades on windows shutdown
use_hostpackages parameter to disable use of host_Packages
removed allow_unsigned
rework of http_upload_packages and duplicate
cleanup only remove obsolete packages unless force is specified
download timeouts for connect and total download

waptconsole :
bugfix crash at end of host list
mulitselect remove Packages from host Packages
reworked add depends / remove depends

some unicode fixes
upgradedb issue http://roundup.tranquil.it/wapt/issue228