Rename keepassx2-http to keepassx-reboot

The `keepassx2-http` fork has been moved to a new organization and
renamed to `keepassx-reboot`. For more details on the change, see the
discussions in GitHub issues [1][2].

Included changes:
- Rename the `keepassx2-http` package to `keepassx-reboot`
- Fetch source from correct (moved) GitHub repository
- Update the version to the latest release
- Change the `homepage`, as these projects are likely to diverge over
  time
- Add `keepassx2-http` to `aliases.nix

[1] https://github.com/keepassx/keepassx/pull/111#issuecomment-250639109
[2] https://github.com/keepassxreboot/keepassx/issues/40

pkgs/applications/misc/keepassx/reboot.nix

@@ -1,23 +1,23 @@
 { stdenv, fetchFromGitHub, cmake, libgcrypt, qt5, zlib, libmicrohttpd, libXtst }:
 
 stdenv.mkDerivation rec {
-  name = "keepassx2-http-unstable-${version}";
-  version = "2016-05-27";
+  name = "keepassx-reboot-${version}";
+  version = "2.0.3";
 
   src = fetchFromGitHub {
-    owner = "droidmonkey";
-    repo = "keepassx_http";
-    rev = "bb2e1ee8da3a3245c3ca58978a979dd6b5c2472a";
-    sha256 = "1rlbjs0i1kbrkksliisnykhki8f15g09xm3fwqlgcfc2czwbv5sv";
+    owner = "keepassxreboot";
+    repo = "keepassx";
+    rev = "${version}-http";
+    sha256 = "0pj3mirhw87hk9nlls9hgfx08xrr8ln7d1fqi3fcm519qjr72lmv";
   };
 
   buildInputs = [ cmake libgcrypt zlib qt5.full libXtst libmicrohttpd ];
 
   meta = {
     description = "Fork of the keepassX password-manager with additional http-interface to allow browser-integration an use with plugins such as PasslFox (https://github.com/pfn/passifox). See also keepassX2.";
-    homepage = http://www.keepassx.org/;
+    homepage = https://github.com/keepassxreboot/keepassx;
     license = stdenv.lib.licenses.gpl2;
-    maintainers = with stdenv.lib.maintainers; [ s1lvester ];
+    maintainers = with stdenv.lib.maintainers; [ s1lvester jonafato ];
     platforms = with stdenv.lib.platforms; linux;
   };
 }