Fix C4 JR2 processing (csv contains only a single month) (#100)

pycounter/report.py

@@ -907,7 +907,7 @@ def _year_from_header(header, report):
     elif report.report_type == "PR1" and report.report_version == 4:
         first_date_col = 4
     elif report.report_type == "JR2":
-        first_date_col = 11
+        first_date_col = 9
     year = int(header[first_date_col].split("-")[1])
     if year < 100:
         year += 2000

pycounter/test/conftest.py

@@ -269,6 +269,7 @@ def multiyear():
 C4JR1mul.csv
 C4JR1my.csv
 C4JR2.csv
+C4JR2_single_month.csv
 PR1.tsv
 simpleJR1.tsv
 """.split()

pycounter/test/data/C4JR2_single_month.csv

@@ -0,0 +1,11 @@
+"Journal Report 2 (R4)","Access denied to Full-text Articles by Month, Journal and Category"
+"University of Maximegalon"
+""
+"Period covered by Report:"
+"2011-01-01 to 2011-12-31"
+"Date run:"
+2012-02-21
+Journal,Publisher,Platform,"Journal DOI","Proprietary Identifier","Print ISSN","Online ISSN","Access Denied Category","Reporting Period Total",Jan-2011
+"Total for all journals","Maximegalon University Press",MJO,,,,,3,3
+"Abstracts of Working Papers in Economics","Maximegalon University Press",MJO,,,0951-0079,0951-0079,Access denied: concurrent/simultaneous user license limit exceeded,2,2
+"Acta Numerica","Maximegalon University Press",MJO,,,0962-4929,1474-0508,Access denied: concurrent/simultaneous user license limit exceeded,1,1