Deprecate java_invoke, replace with javaMethod. Update all m-files to use javaMethod. * scripts/deprecated/java_invoke.m: New m-file with warning about function being deprecated. * libinterp/octave-value/ov-java.cc(Fjava_invoke, FjavaMethod): Remove java_invoke. Replace body of javaMethod with old java_invoke code. * libinterp/octave-value/ov-java.cc(do_java_invoke): Rename to do_javaMethod. * libinterp/octave-value/ov-java.cc(do_java_create): Rename to do_javaObject. * libinterp/octave-value/ov-java.h(do_java_invoke, do_java_create): Rename prototypes for functions to do_javaMethod and do_javaObject respectively. * scripts/deprecated/javafields.m, scripts/deprecated/javamethods.m, scripts/deprecated/module.mk, scripts/general/fieldnames.m, scripts/general/methods.m, scripts/java/errordlg.m, scripts/java/helpdlg.m, scripts/java/inputdlg.m, scripts/java/javaArray.m, scripts/java/javaaddpath.m, scripts/java/javaclasspath.m, scripts/java/javamem.m, scripts/java/javarmpath.m, scripts/java/listdlg.m, scripts/java/msgbox.m, scripts/java/questdlg.m, scripts/java/warndlg.m: Replace java_invoke calls with javaMethod calls.

FCN_FILE_DIRS += deprecated

deprecated_FCN_FILES = \
  deprecated/__error_text__.m \
  deprecated/cor.m \
  deprecated/corrcoef.m \
  deprecated/cut.m \
  deprecated/error_text.m \
  deprecated/isstr.m \
  deprecated/java_get.m \
  deprecated/java_invoke.m \
  deprecated/java_new.m \
  deprecated/java_set.m \
  deprecated/javafields.m \
  deprecated/javamethods.m \
  deprecated/polyderiv.m \
  deprecated/setstr.m \
  deprecated/shell_cmd.m \
  deprecated/studentize.m \
  deprecated/sylvester_matrix.m

FCN_FILES += $(deprecated_FCN_FILES)

PKG_ADD_FILES += deprecated/PKG_ADD

DIRSTAMP_FILES += deprecated/$(octave_dirstamp)