Add mlocate package

packages/mlocate.rb

+require 'package'
+
+class Mlocate < Package
+  version '0.26'
+  source_url 'https://fedorahosted.org/releases/m/l/mlocate/mlocate-0.26.tar.xz' # software source tarball url
+  source_sha1 'c6e6d81b25359c51c545f4b8ba0f3b469227fcbc'                         # source tarball sha1 sum
+  
+  def self.build                                                                 # self.build contains commands needed to build the software from source
+    system "sed -i 's/groupname = mlocate/groupname = chronos/g' Makefile.*"     # change groupname in all Makefiles
+    system "./configure"
+    system "make"                                                                # ordered chronologically
+  end
+
+  def self.install                                                               # self.install contains commands needed to install the software on the target system
+    system "make", "DESTDIR=#{CREW_DEST_DIR}", "install"                         # remember to include DESTDIR set to CREW_DEST_DIR - needed to keep track of changes made to system
+  end
+end