Using the fully qualified assembly name in dependencies

mkbundle fails to load dependencies in certain cases because it doesn't use the full assembly name when computing dependencies. The assembly name is eventually provided to 'System.AppDomain.Load()' which expects a fully qualified assembly name.

The problem can be reproduced by running mkbundle on an GTK# application

```
$ mkbundle test.exe test.dll -o test --deps -z --static --config config
OS is: Linux
Note that statically linking the LGPL Mono runtime has more licensing restrictions than dynamically linking.
See http://www.mono-project.com/Licensing for details on licensing.
Sources: 2 Auto-dependencies: True

Unhandled Exception:
System.IO.FileNotFoundException: Could not load file or assembly 'gtk-sharp' or one of its dependencies. The system cannot find the file specified.
File name: 'gtk-sharp'
  at System.AppDomain.Load (System.String assemblyString, System.Security.Policy.Evidence assemblySecurity, Boolean refonly) [0x00000] in <filename unknown>:0 
  at (wrapper remoting-invoke-with-check) System.AppDomain:Load (string,System.Security.Policy.Evidence,bool)
  at System.Reflection.Assembly.ReflectionOnlyLoad (System.String assemblyString) [0x00000] in <filename unknown>:0 
  at IKVM.Reflection.Universe.DefaultResolver (System.String refname, Boolean throwOnError) [0x00000] in <filename unknown>:0 
  at IKVM.Reflection.Universe.Load (System.String refname, IKVM.Reflection.Module requestingModule, Boolean throwOnError) [0x00000] in <filename unknown>:0 
  at IKVM.Reflection.Universe.Load (System.String refname) [0x00000] in <filename unknown>:0 
  at MakeBundle.QueueAssembly (System.Collections.Generic.List`1 files, System.String codebase) [0x00000] in <filename unknown>:0 
[ERROR] FATAL UNHANDLED EXCEPTION: System.IO.FileNotFoundException: Could not load file or assembly 'gtk-sharp' or one of its dependencies. The system cannot find the file specified.
File name: 'gtk-sharp'
  at System.AppDomain.Load (System.String assemblyString, System.Security.Policy.Evidence assemblySecurity, Boolean refonly) [0x00000] in <filename unknown>:0 
  at (wrapper remoting-invoke-with-check) System.AppDomain:Load (string,System.Security.Policy.Evidence,bool)
  at System.Reflection.Assembly.ReflectionOnlyLoad (System.String assemblyString) [0x00000] in <filename unknown>:0 
  at IKVM.Reflection.Universe.DefaultResolver (System.String refname, Boolean throwOnError) [0x00000] in <filename unknown>:0 
  at IKVM.Reflection.Universe.Load (System.String refname, IKVM.Reflection.Module requestingModule, Boolean throwOnError) [0x00000] in <filename unknown>:0 
  at IKVM.Reflection.Universe.Load (System.String refname) [0x00000] in <filename unknown>:0 
  at MakeBundle.QueueAssembly (System.Collections.Generic.List`1 files, System.String codebase) [0x00000] in <filename unknown>:0 
```

This patch simply changes the assembly qualifier to be its full name, causing System.AppDomain.Load() to succeed even for GTK# apps.