Fix many package descriptions

(My OCD kicked in today...)

Remove repeated package names, capitalize first word, remove trailing
periods and move overlong descriptions to longDescription.

I also simplified some descriptions as well, when they were particularly
long or technical, often based on Arch Linux' package descriptions.

I've tried to stay away from generated expressions (and I think I
succeeded).

Some specifics worth mentioning:
 * cron, has "Vixie Cron" in its description. The "Vixie" part is not
   mentioned anywhere else. I kept it in a parenthesis at the end of the
   description.

 * ctags description started with "Exuberant Ctags ...", and the
   "exuberant" part is not mentioned elsewhere. Kept it in a parenthesis
   at the end of description.

 * nix has the description "The Nix Deployment System". Since that
   doesn't really say much what it is/does (especially after removing
   the package name!), I changed that to "Powerful package manager that
   makes package management reliable and reproducible" (borrowed from
   nixos.org).

 * Tons of "GNU Foo, Foo is a [the important bits]" descriptions
   is changed to just [the important bits]. If the package name doesn't
   contain GNU I don't think it's needed to say it in the description
   either.

6 files changed, 6 insertions, 6 deletions

diff --git a/pkgs/applications/networking/instant-messengers/bitlbee/default.nix b/pkgs/applications/networking/instant-messengers/bitlbee/default.nix
index ec614bf4b8c1e..cf10c1e6fe208 100644
--- a/pkgs/applications/networking/instant-messengers/bitlbee/default.nix
+++ b/pkgs/applications/networking/instant-messengers/bitlbee/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
   doCheck = true;
 
   meta = {
-    description = "BitlBee, an IRC to other chat networks gateway";
+    description = "IRC instant messaging gateway";
 
     longDescription = ''
       BitlBee brings IM (instant messaging) to IRC clients.  It's a
diff --git a/pkgs/applications/networking/instant-messengers/carrier/2.5.0.nix b/pkgs/applications/networking/instant-messengers/carrier/2.5.0.nix
index 9cf2558ef3200..909d6404193cf 100644
--- a/pkgs/applications/networking/instant-messengers/carrier/2.5.0.nix
+++ b/pkgs/applications/networking/instant-messengers/carrier/2.5.0.nix
@@ -41,7 +41,7 @@ rec {
       
   name = "carrier-2.5.0";
   meta = {
-    description = "Carrier - PidginIM GUI fork with user-friendly development model";
+    description = "PidginIM GUI fork with user-friendly development model";
     homepage = http://funpidgin.sf.net; 
   };
 } // (if externalPurple2 then {
diff --git a/pkgs/applications/networking/instant-messengers/ekiga/default.nix b/pkgs/applications/networking/instant-messengers/ekiga/default.nix
index 07730a8c0ee14..e46956f3ccae8 100644
--- a/pkgs/applications/networking/instant-messengers/ekiga/default.nix
+++ b/pkgs/applications/networking/instant-messengers/ekiga/default.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    description = "Ekiga SIP client";
+    description = "VOIP/Videoconferencing app with full SIP and H.323 support";
     maintainers = [ maintainers.raskin ];
     platforms = platforms.linux;
   };
diff --git a/pkgs/applications/networking/instant-messengers/fuze/default.nix b/pkgs/applications/networking/instant-messengers/fuze/default.nix
index 9ccada87fe2f7..41ffb421f8e68 100644
--- a/pkgs/applications/networking/instant-messengers/fuze/default.nix
+++ b/pkgs/applications/networking/instant-messengers/fuze/default.nix
@@ -46,7 +46,7 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    description = "Fuze for Linux";
+    description = "Internet and mobile based unified communications solutions (Linux client)";
     homepage = http://www.fuzebox.com;
     license = "unknown";
   };
diff --git a/pkgs/applications/networking/instant-messengers/hipchat/default.nix b/pkgs/applications/networking/instant-messengers/hipchat/default.nix
index 6da12905f5607..cf4c2e22ad6b8 100644
--- a/pkgs/applications/networking/instant-messengers/hipchat/default.nix
+++ b/pkgs/applications/networking/instant-messengers/hipchat/default.nix
@@ -94,7 +94,7 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    description = "HipChat Desktop Client";
+    description = "Desktop client for HipChat services";
     homepage = http://www.hipchat.com;
     license = stdenv.lib.licenses.unfree;
     platforms = [ "i686-linux" "x86_64-linux" ];
diff --git a/pkgs/applications/networking/instant-messengers/pidgin/default.nix b/pkgs/applications/networking/instant-messengers/pidgin/default.nix
index 6e6fd6d0eb6cd..814a191c457ae 100644
--- a/pkgs/applications/networking/instant-messengers/pidgin/default.nix
+++ b/pkgs/applications/networking/instant-messengers/pidgin/default.nix
@@ -52,7 +52,7 @@ stdenv.mkDerivation rec {
   + (lib.optionalString (gnutls != null) " --enable-gnutls=yes --enable-nss=no")
   ;
   meta = with stdenv.lib; {
-    description = "Pidgin IM - XMPP(Jabber), AIM/ICQ, IRC, SIP etc client";
+    description = "Multi-protocol instant messaging client";
     homepage = http://pidgin.im;
     license = licenses.gpl2Plus;
     platforms = platforms.linux;