Created Windows version of getDF() to exec return code because GnuWin32 version of 'df' returns 1 even it it is successful.  Added isCaseSensitiveFileSystem() method to class that always returns 'true' and overrides for Windows and MacOS X that always return false.  Method is used to avoid running case sensitive JUnit tests on Windows and MacOS X,
Created Windows version of getDF() to exec return code because GnuWin32 version of 'df' returns 1 even it it is successful.  Added isCaseSensitiveFileSystem() method to class that always returns 'true' and overrides for Windows and MacOS X that always return false.  Method is used to avoid running case sensitive JUnit tests on Windows and MacOS X,


git-svn-id: 293778eaa97c8c94097d610b1bd5133a8f478f36@9091 4f837ed2-42f5-46e7-a7a5-fa17313484d4

lockss/lockss-daemon,edina/lockss-daemon,lockss/lockss-daemon,edina/lockss-daemon,lockss/lockss-daemon,lockss/lockss-daemon,lockss/lockss-daemon,edina/lockss-daemon,edina/lockss-daemon,lockss/lockss-daemon,lockss/lockss-daemon,edina/lockss-daemon,edina/lockss-daemon,edina/lockss-daemon