Update curl to 7.52.1

Add source compile methods

packages/curl.rb

 require 'package'
 
 class Curl < Package
-  version '7.32.0'
-  binary_url ({
-    aarch64: 'https://dl.dropboxusercontent.com/s/vvs612glzxrnjva/curl-7.32.0-chromeos-armv7l.tar.xz',
-    armv7l:  'https://dl.dropboxusercontent.com/s/vvs612glzxrnjva/curl-7.32.0-chromeos-armv7l.tar.xz',
-    i686:    'https://dl.dropboxusercontent.com/s/h3x2iiy5ibi97vr/curl-7.32.0-chromeos-i686.tar.gz?token_hash=AAETu-MnNyBTCHQbkh4O817QbNK3wRLbAP_gQhjgNyFGtw&dl=1',
-    x86_64:  'https://dl.dropboxusercontent.com/s/u2hmmd6wfz25qnn/curl-7.32.0-chromeos-x86_64.tar.gz?token_hash=AAGHjx6ATIsDW-Xi4pNUbCMknfWUa6GGQbAquWDkH1xzgg&dl=1',
-  })
-  binary_sha1 ({
-    aarch64: '5d974555b12b54ec47f044dc1cfe7a8ed31bb7e7',
-    armv7l:  '5d974555b12b54ec47f044dc1cfe7a8ed31bb7e7',
-    i686:    'af3abbae663884ed367c5b6b467ebb310052f53f',
-    x86_64:  '94766f554b195583040e31ce8e85846d8271ac11',
-  })
+  version '7.52.1'
+  source_url 'https://curl.haxx.se/download/curl-7.52.1.tar.bz2'
+  source_sha1 'aa9f2300096d806c68c7ba8c50771853d1b43eb4'
+
+  depends_on 'openssl' => :build
+  depends_on 'zlibpkg' => :build
+  depends_on 'libssh2'
+  depends_on 'groff' => :build
+
+  def self.build
+    system "./configure", "--disable-static"
+    system "make"
+  end
+
+  def self.install
+    system "make", "DESTDIR=#{CREW_DEST_DIR}", "install"
+  end
+
+  def self.check
+    system "make test"
+  end
 end