fix el6.5 32bit build
Merge branch 'fix-el6-32bit' into devel
CompressedObject() does not close tmp file
add FileObject for plain data files
add conversion from hash binary buffer to hex buffer
refactor DirectoryEntry database retrieval
allow parsing of content hash values
add plain data file retrieval
Merge pull request #415 from reneme/feature-python_file_retrieval

Feature: Python Library allows for Plain File Retrieval
set IFS before iterating .cvmfsdirtab
FIX: re-assign of $dirtab_path
treat exclusion lines in .cvmfsdirtab
TEST: exclusion patterns in .cvmfsdirtab
.cvmfsdirtab now specifies the actual subdirs
adapt test cases 544, 546 and 549
FIX: dirtab warning message not specific
generalize exclusions to allow for finer control
adapt test case 549
use glob for excludes as well
adapt test case 549