Add an edit button to changelog entries

Author: wilzbach

changelog/changelog.ddoc

@@ -29,6 +29,7 @@ CHANGELOG_SEP_HEADER_TEXT_NONEMPTY=$(BR)$(BIG $(RELATIVE_LINK2 bugfix-list, List
 CHANGELOG_SEP_HEADER_TEXT=$(HR)
 CHANGELOG_SEP_TEXT_BUGZILLA=$(BR)$(BIG $(LNAME2 bugfix-list, List of all bug fixes and enhancements in D $(VER):))
 CHANGELOG_SEP_NO_TEXT_BUGZILLA=$(BR)$(BIG List of all bug fixes and enhancements in D $(VER).)
+CHANGELOG_SOURCE_FILE=
 
 BUGSTITLE_TEXT_HEADER=$(BUGSTITLE $1, $+)
 BUGSTITLE_TEXT_BODY=$(BUGSTITLE $1, $+)

changelog/pending.ddoc

@@ -7,3 +7,9 @@ $(SMALL $1)
 $3
 )
 CHANGELOG_SEP_HEADER_TEXT_NONEMPTY=$(BR)$(BIG $(RELATIVE_LINK2 bugfix-list, List of all upcoming bug fixes and enhancements in D $(VER).))
+CHANGELOG_SOURCE_FILE=$(DIVC changelog-source-edit-btn, $(LINK2 https://github.com/dlang/$1/edit/master/$2, $(TC i, fa fa-edit)))
+EXTRA_HEADERS=$(T style,
+    .changelog-source-edit-btn {
+        float: right;
+    }
+)