Curate/fix template mappings

[samseaver]

It's been reported that there's are template mappings between a reaction's EC number and the EC number of the functional role its linked to in the template complexes.

Here's an example:

rxn02282 (EC 3.5.3.5; http://rest.kegg.jp/get/R03188) --> cpx34518 --> ftr34193 --> allantoate deiminase (EC 3.5.3.9)