Update iexplorer homepage

From http://www.macroplant.com/ to http://www.macroplant.com/iexplorer/
Update visit homepage

From https://wci.llnl.gov/codes/visit/home.html to https://wci.llnl.gov/simulation/computer-codes/visit
Update mesasqlite homepage

From http://www.desertsandsoftware.com to http://www.desertsandsoftware.com/wordpress/?page_id=17
Update hostbuddy homepage

To http://clickontyler.com/hostbuddy/
Update fetch homepage

To http://fetchsoftworks.com/fetch/
Update nitroshare homepage

To https://launchpad.net/nitroshare
Update smartgit homepage

To http://www.syntevo.com/smartgit/
Update smartsynchronize homepage

To http://www.syntevo.com/smartsynchronize/
Update stockbarjp homepage

To http://midnightsuyama.org/blog/articles/stockbarjp/
Merge pull request #7995 from Amorymeltzer/update-homepages

Update homepages for a few casks