fixed the reader for the older Paper1 format yaml files

[wkerzendorf]

@unoebauer This should give you the ability to use the older yaml files

[landscape-bot]

Repository health increased by 0.12% when pulling cf74594 on wkerzendorf:test/paper1_comparisons into 4cdaaf0 on tardis-sn:master.

• No new problems were introduced.
• 1 problem was fixed (including 0 errors and 1 code smell).

[landscape-bot]

Repository health increased by 0.22% when pulling 63340b1 on wkerzendorf:test/paper1_comparisons into 4cdaaf0 on tardis-sn:master.

• No new problems were introduced.
• 3 problems were fixed (including 0 errors and 3 code smells).

[landscape-bot]

Repository health increased by 0.22% when pulling c1259be on wkerzendorf:test/paper1_comparisons into 4cdaaf0 on tardis-sn:master.

• No new problems were introduced.
• 3 problems were fixed (including 0 errors and 3 code smells).

[coveralls]

Coverage increased (+0.01%) to 55.11% when pulling c1259be on wkerzendorf:test/paper1_comparisons into 4cdaaf0 on tardis-sn:master.

[coveralls]

Coverage increased (+0.02%) to 55.12% when pulling 66bf301 on wkerzendorf:test/paper1_comparisons into 4cdaaf0 on tardis-sn:master.

[coveralls]

Coverage increased (+0.02%) to 55.12% when pulling f8b35c7 on wkerzendorf:test/paper1_comparisons into 4cdaaf0 on tardis-sn:master.

[landscape-bot]

Repository health increased by 0.23% when pulling f8b35c7 on wkerzendorf:test/paper1_comparisons into 4cdaaf0 on tardis-sn:master.

• No new problems were introduced.
• 3 problems were fixed (including 0 errors and 3 code smells).

[landscape-bot]

Repository health increased by 0.23% when pulling f8b35c7 on wkerzendorf:test/paper1_comparisons into 4cdaaf0 on tardis-sn:master.

• No new problems were introduced.
• 3 problems were fixed (including 0 errors and 3 code smells).