Update theme (v0.15 and v0.14)

[jarrodmillman]

@steppi @rgommers FYI, this updates the grid and figure shortcodes.

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[jarrodmillman]

I used this script to convert between the format for Hugo's figure shortcode and the theme's figure shortcode:

import shlex
import sys

def replace_figure_shortcode(figure):
    figure = figure.replace('*', '')
    figure = figure.replace('align="middle"', 'align="center"')
    figure = figure.replace('caption=', 'title=')
    figure = figure.replace('attr=', 'attribution=')
    figure = figure.replace('attrlink=', 'attributionlink=')
    contents = figure[11:-4]
    parameters = shlex.split(contents)
    parameters = [s for s in parameters if not s.startswith("class=")]
    toml = [s.replace("=", " = '") + "'" for s in parameters]
    return "\n".join(["{{< figure >}}"] + toml + ["{{< /figure >}}\n"])

filename = sys.argv[1]
start = "{{< figure src="
end = ">}}\n"

with open(filename, "r") as f:
    lines = f.readlines()

with open(filename, "w") as f:
    for line in lines:
        if line.startswith(start) and line.endswith(end):
            line = replace_figure_shortcode(line)
        f.write(line)