Eliminate implicit kinds and typecasts #155

Job	Run time
build (--disable-openmp, --with-yaml, --enable-deprecated-io)	13m 33s
build (--disable-openmp, --with-yaml, --disable-deprecated-io)	10m 20s
build (--disable-openmp, --enable-test-input=/home/unit_tests_input, --enable-deprecated-io)	13m 57s
build (--disable-openmp, --enable-test-input=/home/unit_tests_input, --disable-deprecated-io)	11m 16s
build (--enable-mixed-mode, --with-yaml, --enable-deprecated-io)	13m 32s
build (--enable-mixed-mode, --with-yaml, --disable-deprecated-io)	12m 59s
build (--enable-mixed-mode, --enable-test-input=/home/unit_tests_input, --enable-deprecated-io)	12m 11s
build (--enable-mixed-mode, --enable-test-input=/home/unit_tests_input, --disable-deprecated-io)	12m 7s
build (--disable-setting-flags, --with-yaml, --enable-deprecated-io)	11m 14s
build (--disable-setting-flags, --with-yaml, --disable-deprecated-io)	10m 19s
build (--disable-setting-flags, --enable-test-input=/home/unit_tests_input, --enable-deprecated-io)	13m 42s
build (--disable-setting-flags, --enable-test-input=/home/unit_tests_input, --disable-deprecated-io)	11m 10s
build (--with-mpi=no, --with-yaml, --enable-deprecated-io)	4m 44s
build (--with-mpi=no, --with-yaml, --disable-deprecated-io)	5m 41s
build (--with-mpi=no, --enable-test-input=/home/unit_tests_input, --enable-deprecated-io)	4m 46s
build (--with-mpi=no, --enable-test-input=/home/unit_tests_input, --disable-deprecated-io)	4m 27s
	2h 45m 58s

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