modified report/report.py to run on all OS

src/report/report.py

@@ -440,10 +440,10 @@ def generate_report(change):
     for i in range(4):
         print(i)
         if i == 1:
-            proc = subprocess.Popen([pdflatex_path / 'bibtex.exe', filename[:-4]], cwd = filename_path)
+            proc = subprocess.Popen([pdflatex_path / 'bibtex', filename[:-4]], cwd = filename_path)
             proc.communicate()
         else:
-            proc = subprocess.Popen([pdflatex_path / 'pdflatex.exe', filename], cwd = filename_path)
+            proc = subprocess.Popen([pdflatex_path / 'pdflatex', filename], cwd = filename_path)
             proc.communicate()
     # remove pdflatex compilation files
     extensions = ['.log', '.aux', '.bbl', '.blg', '.out']