use read instead of sysread
upload-file - check if STDIN not empty before creating vault id, but after fork children and read journal
MetaData - specification cosmetic fixes
Filter - initial draft
Filter - a bit improvements
filter - code to conver filter to regexp start working + tests, draft specification
filter - cosmetic changes to code
Merge branch 'master' into development
Merge branch 'development' into filter
filters - rename filter(s)_to_regexp to _pattern(s)_to_regexp
filters - match subdirs flag implemented
filter - test correctness of escapes
filter - parse_filter test
filters - fix regexp for case empty pattern in '--filter', check_dir and check_filenames implemented
filter - '?' wildcard support
config - support for array-type options
Merge branch 'master' into development
Merge branch 'development' into filter
config engine - rewrite GetOpts calls using callbacks feature
config engine - array options work with aliases