Auto-update does not detect new version about pyspeedtest

[mishaturnbull]

Issue seems to be in the is_version_greater function in __version__.py. Crashes if the version number supplied is not appended with a 'v':

>>> is_version_greater("v2.0.1", "v2.0.0")
True
>>> is_version_greater("2.0.1", "2.0.0")
Traceback (most recent call last):
  File "C:\Users\Misha\PySpeedMonitor\src\__version__.py", line 25, in is_version_greater
    maj2, min2, pat2 = [int(i) for i in ver2[1:].split('-')[0].split('.')]
  File "C:\Users\Misha\PySpeedMonitor\src\__version__.py", line 25, in <listcomp>
    maj2, min2, pat2 = [int(i) for i in ver2[1:].split('-')[0].split('.')]
ValueError: invalid literal for int() with base 10: ''