Add release script

+#!/usr/bin/env bash
+set -eo pipefail; [[ $RELEASE_TRACE ]] && set -x
+
+PACKAGE_NAME='kappa'
+INIT_PACKAGE_NAME='kappa'
+PUBLIC="true"
+
+# Colors
+COLOR_OFF="\033[0m"   # unsets color to term fg color
+RED="\033[0;31m"      # red
+GREEN="\033[0;32m"    # green
+YELLOW="\033[0;33m"   # yellow
+MAGENTA="\033[0;35m"  # magenta
+CYAN="\033[0;36m"     # cyan
+
+# ensure wheel is available
+pip install wheel > /dev/null
+
+# ensure Pygment is available
+pip install Pygments > /dev/null
+
+command -v gitchangelog >/dev/null 2>&1 || {
+    echo -e "${RED}WARNING: Missing gitchangelog binary, please run: pip install gitchangelog==2.2.0${COLOR_OFF}\n"
+    exit 1
+}
+
+command -v rst-lint > /dev/null || {
+    echo -e "${RED}WARNING: Missing rst-lint binary, please run: pip install restructuredtext_lint${COLOR_OFF}\n"
+    exit 1
+}
+
+if [[ "$@" != "major" ]] && [[ "$@" != "minor" ]] && [[ "$@" != "patch" ]]; then
+    echo -e "${RED}WARNING: Invalid release type, must specify 'major', 'minor', or 'patch'${COLOR_OFF}\n"
+    exit 1
+fi
+
+echo -e "\n${GREEN}STARTING RELEASE PROCESS${COLOR_OFF}\n"
+
+set +e;
+git status | grep "working directory clean" &> /dev/null
+if [ ! $? -eq 0 ]; then # working directory is NOT clean
+    echo -e "${RED}WARNING: You have uncomitted changes, you may have forgotten something${COLOR_OFF}\n"
+    exit 1
+fi
+set -e;
+
+echo -e "${YELLOW}--->${COLOR_OFF} Updating local copy"
+git pull -q origin master
+git fetch --tags > /dev/null
+
+echo -e "${YELLOW}--->${COLOR_OFF} Retrieving release versions"
+
+current_version=$(cat ${INIT_PACKAGE_NAME}/__init__.py |grep '__version__ ='|sed 's/[^0-9.]//g')
+major=$(echo $current_version | awk '{split($0,a,"."); print a[1]}')
+minor=$(echo $current_version | awk '{split($0,a,"."); print a[2]}')
+patch=$(echo $current_version | awk '{split($0,a,"."); print a[3]}')
+
+if [[ "$@" == "major" ]]; then
+    major=$(($major + 1));
+    minor="0"
+    patch="0"
+elif [[ "$@" == "minor" ]]; then
+    minor=$(($minor + 1));
+    patch="0"
+elif [[ "$@" == "patch" ]]; then
+    patch=$(($patch + 1));
+fi
+
+next_version="${major}.${minor}.${patch}"
+
+echo -e  "${YELLOW}   >${COLOR_OFF} ${MAGENTA}${current_version}${COLOR_OFF} -> ${MAGENTA}${next_version}${COLOR_OFF}"
+
+echo -e "${YELLOW}--->${COLOR_OFF} Ensuring readme passes lint checks (if this fails, run rst-lint)"
+rst-lint README.rst > /dev/null
+
+echo -e "${YELLOW}--->${COLOR_OFF} Creating necessary temp file"
+tempfoo=$(basename $0)
+TMPFILE=$(mktemp /tmp/${tempfoo}.XXXXXX) || {
+    echo -e "${RED}WARNING: Cannot create temp file using mktemp in /tmp dir ${COLOR_OFF}\n"
+    exit 1
+}
+
+find_this="__version__ = '$current_version'"
+replace_with="__version__ = '$next_version'"
+
+echo -e "${YELLOW}--->${COLOR_OFF} Updating ${INIT_PACKAGE_NAME}/__init__.py"
+sed "s/$find_this/$replace_with/" ${INIT_PACKAGE_NAME}/__init__.py > $TMPFILE && mv $TMPFILE ${INIT_PACKAGE_NAME}/__init__.py
+
+echo -e "${YELLOW}--->${COLOR_OFF} Updating README.rst"
+find_this="${PACKAGE_NAME}.git@$current_version"
+replace_with="${PACKAGE_NAME}.git@$next_version"
+sed "s/$find_this/$replace_with/" README.rst > $TMPFILE && mv $TMPFILE README.rst
+find_this="${PACKAGE_NAME}==$current_version"
+replace_with="${PACKAGE_NAME}==$next_version"
+sed "s/$find_this/$replace_with/" README.rst > $TMPFILE && mv $TMPFILE README.rst
+
+if [ -f docs/conf.py ]; then
+    echo -e "${YELLOW}--->${COLOR_OFF} Updating docs"
+    find_this="version = '${current_version}'"
+    replace_with="version = '${next_version}'"
+    sed "s/$find_this/$replace_with/" docs/conf.py > $TMPFILE && mv $TMPFILE docs/conf.py
+
+    find_this="release = '${current_version}'"
+    replace_with="release = '${next_version}'"
+    sed "s/$find_this/$replace_with/" docs/conf.py > $TMPFILE && mv $TMPFILE docs/conf.py
+fi
+
+echo -e "${YELLOW}--->${COLOR_OFF} Updating CHANGES.rst for new release"
+version_header="$next_version ($(date +%F))"
+set +e; dashes=$(yes '-'|head -n ${#version_header}|tr -d '\n') ; set -e
+gitchangelog |sed "4s/.*/$version_header/"|sed "5s/.*/$dashes/" > $TMPFILE && mv $TMPFILE CHANGES.rst
+
+echo -e "${YELLOW}--->${COLOR_OFF} Adding changed files to git"
+git add CHANGES.rst README.rst ${INIT_PACKAGE_NAME}/__init__.py
+if [ -f docs/conf.py ]; then git add docs/conf.py; fi
+
+echo -e "${YELLOW}--->${COLOR_OFF} Creating release"
+git commit -q -m "Release version $next_version"
+
+echo -e "${YELLOW}--->${COLOR_OFF} Tagging release"
+git tag -a $next_version -m "Release version $next_version"
+
+echo -e "${YELLOW}--->${COLOR_OFF} Pushing release and tags to github"
+git push -q origin master && git push -q --tags
+
+if [[ "$PUBLIC" == "true" ]]; then
+    echo -e "${YELLOW}--->${COLOR_OFF} Creating python release"
+    cp README.rst README
+    python setup.py sdist bdist_wheel upload > /dev/null
+    rm README
+else
+    echo -e "${YELLOW}--->${COLOR_OFF} Creating local python dist and wheel for manual release"
+    python setup.py sdist bdist_wheel > /dev/null
+fi
+
+echo -e "\n${CYAN}RELEASED VERSION ${next_version}${COLOR_OFF}\n"