Merge branch 'feature/wp/induction-tactic' into 'master'

headers/header_spec.txt

src/plugins/wp/Conditions.mli

src/plugins/wp/GuiTactic.ml

src/plugins/wp/Makefile.in

src/plugins/wp/TacInduction.ml

src/plugins/wp/TacInduction.mli

src/plugins/wp/doc/manual/wp_plugin.tex

src/plugins/wp/tests/wp_tip/induction.i

...gins/wp/tests/wp_tip/oracle_qualif/induction.0.res.oracle

...oracle_qualif/induction.0.session/script/lemma_ByInd.json

...gins/wp/tests/wp_tip/oracle_qualif/induction.1.res.oracle

...oracle_qualif/induction.1.session/script/lemma_ByInd.json

...gins/wp/tests/wp_tip/oracle_qualif/induction.2.res.oracle

...oracle_qualif/induction.2.session/script/lemma_ByInd.json

...lugins/wp/tests/wp_tip/oracle_qualif/induction.res.oracle

..._qualif/induction_prove.0.session/script/lemma_ByInd.json