New version (1.6.0) with features and bug fixes.

• General changes/additions
  • augtool: add --load-file option, and corresponding load-file command to load individual files based on the autoload information in lenses
  • path expressions: numbers in path expressions are now 64 bit integers rather than whatever the C compiler decided 'int' would be
• API changes
  • add aug_load_file to load individual files, bug #135
• Lens changes/additions
  • Httpd: follow line continuations in comments
  • Nginx: look for nginx.conf in /usr/local/etc, too (Omer Katz)
  • Ntp: allow 'pool' (Craig Miskell) (Issue #378); fix restrict to allow also -4 and also fix save/store ability (Josef Reidinger) (Issue #386)
  • Pam: use spaces instead of tabs as the separator in new entries (Loren Gordon) (Issue #236)
  • Postfix_Passwordmap: New lens to parse Postfix password maps (Anton Baranov) (Issue #380)
  • Rsyslog: Support for rsyslog RainerScript syntax (Craig Miskell) (Issue #379)
  • Shellvars: Load /etc/lbu/lbu.conf, the config for Alpine's Local Backup Utility (Kaarle Ritvanen) Load /etc/profile, /etc/profile.d/*, and /etc/byobu
  • Vsftpd: Add allow_writeable_chroot boolead option (Robert Moucha) (Issue #376)