Replace linktastic with simple ctypes

Linktastic calls the command line interpreter to do linking. This
solution calls the windows API directly. This is faster and cleaner, but
most important of all: it doesn't cause a command window to popup every
time a link is made. This popup asks window focus and thus interrupts a
movie you are watching!!

Hopefully this also works on non-windows systems. I am unable to test
this so please let me know :)

couchpotato/core/plugins/renamer/main.py

@@ -10,7 +10,6 @@ from couchpotato.core.plugins.base import Plugin
 from couchpotato.core.settings.model import Library, File, Profile, Release, \
     ReleaseInfo
 from couchpotato.environment import Env
-from linktastic.linktastic import link, symlink
 import errno
 import os
 import re
@@ -20,6 +19,18 @@ import traceback
 
 log = CPLog(__name__)
 
+# Windows hack for (sym)links
+def winLink(src, dst): 
+    import ctypes 
+    if ctypes.windll.kernel32.CreateHardLinkW(unicode(dst), unicode(src), 0) == 0: raise ctypes.WinError()
+
+def winSymlink(src, dst):
+    import ctypes 
+    if ctypes.windll.kernel32.CreateSymbolicLinkW(unicode(dst), unicode(src), 1 if os.path.isdir(src) else 0) in [0, 1280]: raise ctypes.WinError()
+
+if os.name == 'nt':
+    os.link = winLink
+    os.symlink = winSymlink
 
 class Renamer(Plugin):
 
@@ -502,14 +513,14 @@ Remove it if you want it to be renamed (again, or at least let it try again)
             if forcemove:
                 shutil.move(old, dest)
             elif self.conf('file_action') == 'hardlink':
-                link(old, dest)
+                os.link(old, dest)
             elif self.conf('file_action') == 'symlink':
-                symlink(old, dest)
+                os.symlink(old, dest)
             elif self.conf('file_action') == 'copy':
                 shutil.copy(old, dest)
             elif self.conf('file_action') == 'move_symlink':
                 shutil.move(old, dest)
-                symlink(dest, old)
+                os.symlink(dest, old)
             else:
                 shutil.move(old, dest)