gnu: Add treecc.

* gnu/packages/dotnet.scm: New module.
  (treecc): New package.
* gnu/local.mk (GNU_SYSTEM_MODULES): Register new module.

Signed-off-by: Efraim Flashner <efraim@flashner.co.il>
Change-Id: Ic809d0aa7a8486a091beccef3dcd22a9821aeb94

gnu: libjit: Limit supported systems.

* gnu/packages/assemply.scm (libjit)[supported-systems]: New field.

Change-Id: I2afa5cca78d5f15df0a0bfca9b2f4a59db40396e

Revert "gnu: Add perl-spreadsheet-parseexcel."

It's a duplicate.

This reverts commit 22a3211d249b63427337d62a726bec7573a12a92.

gnu: Add spamassassin.

* gnu/packages/perl-web.scm (spamassassin): New variable.

Signed-off-by: Danny Milosavljevic <dannym@friendly-machines.com>

gnu: Add perl-razor2-client-agent.

* gnu/packages/perl-web.scm (perl-razor2-client-agent): New variable.

Signed-off-by: Danny Milosavljevic <dannym@friendly-machines.com>

gnu: Add perl-net-libidn.

* gnu/packages/perl-web.scm (perl-net-libidn): New variable.

Signed-off-by: Danny Milosavljevic <dannym@friendly-machines.com>

gnu: Add perl-mail-dmarc.

* gnu/packages/perl-web.scm (perl-mail-dmarc): New variable.

Signed-off-by: Danny Milosavljevic <dannym@friendly-machines.com>

gnu: Add perl-net-imap-simple.

* gnu/packages/perl-web.scm (perl-net-imap-simple): New variable.

Signed-off-by: Danny Milosavljevic <dannym@friendly-machines.com>

gnu: Add perl-net-ip.

* gnu/packages/perl-web.scm (perl-net-ip): New variable.

Signed-off-by: Danny Milosavljevic <dannym@friendly-machines.com>

gnu: Add perl-net-smtps.

* gnu/packages/perl-web.scm (perl-net-smtps): New variable.

Signed-off-by: Danny Milosavljevic <dannym@friendly-machines.com>

gnu: Add perl-geo-ip.

* gnu/packages/perl-web.scm (perl-geo-ip): New variable.

Signed-off-by: Danny Milosavljevic <dannym@friendly-machines.com>

gnu: Add geolite-country-data.

* gnu/packages/perl-web.scm (geolite-country-data): New variable.

Signed-off-by: Danny Milosavljevic <dannym@friendly-machines.com>

gnu: Add perl-soap-lite.

* gnu/packages/perl-web.scm (perl-soap-lite): New variable.

Signed-off-by: Danny Milosavljevic <dannym@friendly-machines.com>

gnu: Add perl-io-sessiondata.

* gnu/packages/perl-web.scm (perl-io-sessiondata): New variable.

Signed-off-by: Danny Milosavljevic <dannym@friendly-machines.com>

gnu: Add perl-gravatar-url.

* gnu/packages/perl-web.scm (perl-gravatar-url): New variable.

Signed-off-by: Danny Milosavljevic <dannym@friendly-machines.com>

gnu: Add perl-text-xslate.

* gnu/packages/perl.scm (perl-text-xslate): New variable.

Signed-off-by: Danny Milosavljevic <dannym@friendly-machines.com>

gnu: Add perl-user.

* gnu/packages/perl.scm (perl-user): New variable.

Signed-off-by: Danny Milosavljevic <dannym@friendly-machines.com>

gnu: Add perl-time-warp.

* gnu/packages/perl.scm (perl-time-warp): New variable.

Signed-off-by: Danny Milosavljevic <dannym@friendly-machines.com>

gnu: Add perl-tie-hash-method.

* gnu/packages/perl.scm (perl-tie-hash-method): New variable.

Signed-off-by: Danny Milosavljevic <dannym@friendly-machines.com>

gnu: Add perl-text-tabulardisplay.

* gnu/packages/perl.scm (perl-text-tabulardisplay): New variable.

Signed-off-by: Danny Milosavljevic <dannym@friendly-machines.com>