version 0.16 - release 3

Main features of this release are:

• LYB format pathological meta data case fix
  • caused data corruption
• new lyd_validate() flag LYD_OPT_VAL_DIFF
  • causes validation to output the data node changes it made
• new lyd_validate_modules() function
  • allows validating data of specified modules instead of the whole context
• greatly improved efficiency of lyd_free_withsiblings() and lyd_dup_withsiblings()
• false when autodelete behavior fixes
• new yanglint load command
• new make uninstall target
• support for GCC version 4.8.4 and lower
• many other small improvements and bugfixes