Merge lp:~mvo/software-center/fix-purchase-accept-crash into lp:software-center

[Michael Vogt]

This fixes a crash when doing a purchase on a system without a configuration.
To reproduce:
- rm -rf ~/.config/software-center
- open software-center
- purchases something
- observe error on the terminal after accepting the ToS dialog

[Michael Vogt (mvo)]

Fwiw, davmor2 tested this and it works for him.

[Kiwinote (kiwinote)]

review: Approve

=== modified file 'softwarecenter/ui/gtk3/views/purchaseview.py'
--- softwarecenter/ui/gtk3/views/purchaseview.py	2012-03-22 23:05:26 +0000
+++ softwarecenter/ui/gtk3/views/purchaseview.py	2012-03-26 11:34:39 +0000
@@ -138,6 +138,9 @@
             res = show_accept_tos_dialog(get_parent(self))
             if not res:
                 return False
+            # config parser will not add sections automatically :/
+            if not self.config.has_section("general"):
+                self.config.add_section("general")
             self.config.set("general", "accepted_tos", "yes")
             return True
         return True