Update to 0.1.7.
Did I never commit this??

* 0.1.7

** Language:
- initialize and finalize script code, cf demos/initial_final.cocci

** Features:
- -iso_limit option to limit the depth of isomorphism application
- with the dir option, the include path is implicitly set to the "include"
  subdirectory of the specified directory, if the option -I is not used.
- give a seed for the name of a fresh identifier
- better handling of cpp "constructed" identifiers as in a##b, that in
  the futur will make it easier to match over those idents.
  cf tests/pb_parsing_macro.c. Thanks to Ali-Erdem Ozcan for pointing
  out the problem. A new "parsing hack hint" is also available:
  YACFE_IDENT_BUILDER, cf standard.h.

** Bugfix:
- drop excessive "optimization" in ctl generation for while and for loops
- allow . as the name of the directory
- for type inference for an assignment, take the type of the right-hand
  side expression, not the type of the assigned variable
- allow for with a declartion in the first header element, as in C++
  (partial support)
- allow for matching against variable declarations that include only
  storage, eg static, but no type at all.
- allow for matching against types that contain both short/long and int
- allow the type metavariable in the SmPL code "unsigned T" to match a T
  that is a type consisting of more than one word, eg long int.
- -ifdef_to_if option made to process nested ifdefs
  (partial support)

** Internals:
- improve and fix installation process (usable on BSD)
- improve and fix testing process
- apply patches from Eugeniy Meshcheryakov
- reorganize the way we parse C identifiers, especially concatenated cpp
  identifiers as in a##b. This may lead to some regressions as we may
  not parse as much code as before.
- removed popl/ and popl09/ and popl related stuff from official distrib.

(wiz)