Add .gitignore file

.gitignore

+# Generic patterns
+*.cmi
+*.cmo
+*.cmx
+*.o
+
+# Executables
+ML/conjugation
+ML/css
+ML/declension
+ML/indexer
+ML/indexerd
+ML/interface
+ML/lemmatizer
+ML/mk_grammar_page
+ML/mk_index_page
+ML/mk_reader_page
+ML/mk_sandhi_page
+ML/parser
+ML/reader
+ML/regression
+ML/reset_caches
+ML/sandhier
+ML/test_stamp
+ML/user_aid
+ZEN/dagify
+ZEN/list_iso
+ZEN/make_english_lexicon
+ZEN/make_french_lexicon
+ZEN/terdagify
+ZEN/test
+ZEN/timeshare
+ZEN/unshare
+
+# Local copies of dictionaries
+DICO/
+MW/
+
+# User configuration files
+ML/SCLpaths.ml
+SETUP/config
+
+# Files generated by configure
+/Makefile
+DOC/docintro.tex
+ML/paths.ml
+SITE/faq.en.html
+SITE/faq.fr.html
+SITE/index.en.html
+SITE/index.fr.html
+SITE/portal.en.html
+SITE/portal.fr.html
+
+# Mechanically OCaml generated files from ZEN/example.aut
+ZEN/example_dispatch.ml
+ZEN/sanskrit_dispatch.ml