remove relic files and references to DIST_PREC
require JULY_TAVG_SUPPLIED=TRUE when COMPUTE_TREELINE=TRUE
removed LOG_MATRIC option
Merge pull request #141 from jhamman/feature/no_dist_prec

remove relic files and references to DIST_PREC
Merge pull request #142 from jhamman/feature/treeline_requirements

require JULY_TAVG_SUPPLIED=TRUE when COMPUTE_TREELINE=TRUE
Merge pull request #143 from jhamman/feature/remove_log_matric

removed LOG_MATRIC option
Merge remote-tracking branch 'upstream/develop' into develop