added .gitattributes to specify crlf lineendings

.gitattributes

@@ -0,0 +1,49 @@
+*.doc  diff=astextplain
+*.DOC	diff=astextplain
+*.docx	diff=astextplain
+*.DOCX	diff=astextplain
+*.dot	diff=astextplain
+*.DOT	diff=astextplain
+*.pdf	diff=astextplain
+*.PDF	diff=astextplain
+*.rtf	diff=astextplain
+*.RTF	diff=astextplain
+
+*.jpg  	binary
+*.png 	binary
+*.gif 	binary
+
+*.cs text diff=csharp 
+*.vb text
+*.c text
+*.cpp text
+*.cxx text
+*.h text
+*.hxx text
+*.py text
+*.rb text
+*.java text
+*.html text
+*.htm text
+*.css text
+*.scss text
+*.sass text
+*.less text
+*.js text
+*.lisp text
+*.clj text
+*.sql text
+*.php text
+*.lua text
+*.m text
+*.asm text
+*.erl text
+*.fs text
+*.fsx text
+*.hs text
+
+*.csproj text merge=union 
+*.vbproj text merge=union 
+*.fsproj text merge=union 
+*.dbproj text merge=union 
+*.sln text eol=crlf merge=union