056e69e891aeedd0c826cb2652ec8535955977bb
kent
  Fri Apr 6 16:18:00 2012 -0700
Adding more information about source tree structure and revisiting list of useful library modules.
diff --git README README
index 0cb3a55..8a2d088 100644
--- README
+++ README
@@ -2,33 +2,32 @@
 
 This directory contains the entire source tree for the
 UCSC Genome Bioinformatics Group's suite of biological analysis 
 and web display programs as well as some of Jim Kent's own tools.  
 All files are copyrighted, but license is hereby granted for personal, 
 academic, and non-profit use.  A license is also granted for the contents 
 of the src/lib, src/inc and src/utils and python directories for commercial 
 users.  Commercial users should contact kent@soe.ucsc.edu for access to other 
 modules.  Commercial users interested in the UCSC Genome Browser in particular 
 please see
     http://genome.ucsc.edu/license/.
 
 Most source code users will only be interested in the src/inc and 
 src/lib directories, which contain the interfaces and implementations
 to the library routines,  and in a few specific applications.
-The applications are scattered in other directories.
-Many of them are web based.  A few of them expect
-the MySQL database to be around.
+The applications are scattered in other directories.  Many of them are web based.  
+The UCSC Genome Browser in particular is mostly found in src/hg/hgTracks.
 
 GENERAL INSTALL INSTRUCTIONS
 
 1. Get the code.  The best way to do this now for
    Unix users is via Git following the instructions at:
      http://genome.ucsc.edu/admin/git.html
    Or, fetch the entire source in a single file:
      http://hgdownload.cse.ucsc.edu/admin/jksrc.zip
    Note further documentation for the build process in your
    unpacked source tree in src/product/README.*
    Especially note README.building.source and the "Known problems"
    for typical situations you may encounter.
 2. Check that the environment variable MACHTYPE
    exists on your system.  It should exist on Unix/Linux.  
    (And making this on non-Unix systems is beyond