message: Fix tech prereqs
diff: <bTrade>1</bTrade>
  <bGoodyTech>1</bGoodyTech>
  <bTechTrading>1</bTechTrading>
  + <iGridX>4</iGridX>
  + <iGridY>9</iGridY>
  <Flavors>
  <Flavor>
  <FlavorType>FLAVOR_CULTURE</FlavorType>
  </Flavor>
  </Flavors>
  <OrPreReqs>
  - <PrereqTech>TECH_MASONRY</PrereqTech>
  + <PrereqTech>TECH_CONSTRUCTION</PrereqTech>
  </OrPreReqs>
  <AndPreReqs>
  <PrereqTech>TECH_ARITHMETICS</PrereqTech>
  </Flavors>
  <AndPreReqs>
  <PrereqTech>TECH_ARITHMETICS</PrereqTech>
  - <PrereqTech>TECH_TRADITION</PrereqTech>
  + <PrereqTech>TECH_WRITING</PrereqTech>
  </AndPreReqs>
  <Quote>TXT_KEY_TECH_TRADITION_QUOTE</Quote>
  <Sound>AS2D_TECH_GENERIC</Sound>
  </Flavor>
  </Flavors>
  <AndPreReqs>
  - <PrereqTech>TECH_TRADITION</PrereqTech>
  + <PrereqTech>TECH_WRITING</PrereqTech>
  <PrereqTech>TECH_CALENDAR</PrereqTech>
  </AndPreReqs>
  <Quote>TXT_KEY_TECH_PRIESTHOOD_QUOTE</Quote>
  </Flavors>
  <AndPreReqs>
  <PrereqTech>TECH_CONTRACT</PrereqTech>
  - <PrereqTech>TECH_WRITING</PrereqTech>
  + <PrereqTech>TECH_TRADITION</PrereqTech>
  </AndPreReqs>
  <Quote>TXT_KEY_TECH_LAW_QUOTE</Quote>
  <Sound>AS2D_TECH_GENERIC</Sound>
  </Flavor>
  </Flavors>
  <AndPreReqs>
  - <PrereqTech>TECH_WRITING</PrereqTech>
  + <PrereqTech>TECH_TRADITION</PrereqTech>
  <PrereqTech>TECH_PRIESTHOOD</PrereqTech>
  </AndPreReqs>
  <Quote>TXT_KEY_TECH_PHILOSOPHY_QUOTE</Quote>
  