added implicit none for all subroutine, functions, and interfaces.
removed unused variables (commented).
added explicit definitions for any variables missing declarations.
rewrote integers used as logical
ended do loops with a continue statement
fixed error with ch_basin_permil_ET in phreeq_mms.f90
Disabled some Fortran diagnostics
Fixed error in change of module for xdebug_start, xdebug_stop
git-svn-id: svn://136.177.114.72/svn_GW/IPhreeqc/trunk@9474 1feff8c3-07ed-0310-ac33-dd36852eb9cd