Change asserts for a custom leap_assert method

Also:
- Make SRPAuth and the Bootstrappers be a QObject instead of a QThread
  so we can use them inside another more generic thread
- Add a generic CheckerThread that runs checks or whatever operation
  as long as it returns a boolean value
- Closes the whole application if the wizard is rejected at the first
  run
- Do not fail when the config directory doesn't exist
- Set the wizard pixmap logo as LEAP's logo
- Improve wizard checks
- Make SRPRegister play nice with the CheckerThread

1 files changed, 4 insertions, 2 deletions

diff --git a/src/leap/config/prefixers.py b/src/leap/config/prefixers.py
index a33e68aa..20d59b2d 100644
--- a/src/leap/config/prefixers.py
+++ b/src/leap/config/prefixers.py
@@ -24,6 +24,8 @@ import platform
 from abc import ABCMeta, abstractmethod
 from xdg import BaseDirectory
 
+from leap.util.check import leap_assert
+
 
 class Prefixer:
     """
@@ -47,8 +49,8 @@ class Prefixer:
 
 def get_platform_prefixer():
     prefixer = globals()[platform.system() + "Prefixer"]
-    assert prefixer, "Unimplemented platform prefixer: %s" % \
-        (platform.system(),)
+    leap_assert(prefixer, "Unimplemented platform prefixer: %s" %
+                (platform.system(),))
     return prefixer()