Moving directory 'build' one level up as it collides with a file named 'BUILD' which happens to be in that same location in the Google source depot.

R=chrisha@chromium.org, mark@chromium.org

Review URL: https://breakpad.appspot.com/1504002

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1308 4c0a9323-5329-0410-9bdc-e9ce6186880e
Adding support for 64-bit Windows modules to ms_symbol_server_converter.

As part of that:
 - Updated MSSymbolServerConverter to also download the executable files from the symbol server and pass them to the PDBSourceLineWriter as it is required for successful conversion of symbols for 64-bit modules.
 - Added a .gyp file and target for the ms_symbol_server_converter library.
 - Updated PDBSourceLineWriter to allow executable files to be in locations different from the locations of the PDB files.
 - Minor style issue:
    * #define guards.
    * No space before ')' and after '('.

R=mark@chromium.org, wfh@chromium.org

Review URL: https://breakpad.appspot.com/1434002

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1309 4c0a9323-5329-0410-9bdc-e9ce6186880e