add option for string replacement

fixes #37

README.md

@@ -41,6 +41,8 @@ default configuration is as follows:
       bibliography: references.bib
       bibliography_template: "%{reference}"
 
+      replace_strings: true
+
       details_dir:    bibliography
       details_layout: bibtex.html
       details_link:   Details

lib/jekyll/scholar/defaults.rb

@@ -13,6 +13,8 @@ module Jekyll
       'bibtex_options'        => { :strip => false },
       'bibtex_filters'        => [ :latex ],
 
+      'replace_strings'       => true,
+
       'details_dir'           => 'bibliography',
       'details_layout'        => 'bibtex.html',
       'details_link'          => 'Details',

lib/jekyll/scholar/utilities.rb

@@ -56,7 +56,12 @@ module Jekyll
       end
 
       def bibliography
-        @bibliography ||= BibTeX.open(bibtex_path, bibtex_options)
+        unless @bibliography
+          @bibliography = BibTeX.open(bibtex_path, bibtex_options)
+          @bibliography.replace_strings if replace_strings?
+        end
+
+        @bibliography
       end
 
       def entries
@@ -70,6 +75,10 @@ module Jekyll
         b
       end
 
+      def replace_strings?
+        config['replace_strings']
+      end
+
       def cited_only?
         !!@cited
       end