Add ssorted math/computer words

... as suggested by Amir.
Merge pull request #1 from linas/words

Add ssorted math/computer words
enable maintainer mode by default
More config.ac modernization
fix perl maintainer mode
Merge pull request #2 from linas/perl

Build fixes
dictionary fix, for recently introduced bug.
rename gitignore file
Silence atutotools warnings
Add missing build file.
Fix build-break
- Revive defining DEBUG in configure when --enable-debug is used.
- Add #define GNUC_UNUSED __attribute__ ((unused)), to be used on debug
  functions to silent unused function compilation warnings.
- Fix printf format on a function under #ifdef DEBUG.
- Add a prototype for a function which is ifdef'ed DEBUG.
Merge pull request #3 from ampli/ifdefdebug

- Revive defining DEBUG in configure when --enable-debug is used.
A dynamic memory allocation for the SANEMORPHISM regex.
Prepare for quotes as tokens.
- Add missing quotes to RPUNC and LPUNC.
- Move closing quote “ from LPUNC to RPUNC.
- Add .x and .y on an identical quote `.
Merge pull request #5 from ampli/quotes-rpunclpunc

Prepare for quotes as tokens.
Merge pull request #4 from ampli/dyn_SANEMORPHISM

A dynamic memory allocation for the SANEMORPHISM regex.
Fix wrong report of total number of linkages in sane_morphism().
Fix unconditionally printed debug mode message to be on verbosity>=3.
Change anysplit.h position in a preparation to the Wordgraph version.