Various minor update for spelling and links.
modified:   .gitignore
   added the bin directory to ignore since it is used by the batch files now

modified:   crawler.bat
   made it use go install and then reference the bin directory

modified:   indexer.bat
   made it use go install and then reference the bin directory

new file:   license.txt
    added a license.txt to the project, with David's copyright on it

modified:   server.bat
   made it use go install and then reference the bin directory

modified:   server/web/about.html
    fixed links to github projects, cleaned up langauge a bit

modified:   server/web/footer.html
    moved the GCSE link to header (where it already was)

modified:   server/web/header.html
    moved the GCSE link to header (where it already was)
    made link text a little more clear (might be too long for mobile?)

modified:   server/web/index.html
    cleaned up language a little bit
made it so the bats will work with any GOPATH
Pointless without knowing GOPATH
Merge pull request #2 from robertmeta/master

Bundle of changes (wording, bat files, slight style change)