Update to 0.13.3

Changelog:
2018-02-14  Kohei Yoshida  <kohei.yoshida@gmail.com>  [7ca73a7c83504a30a1d24444a27f57a86451100f]

	Up the version to 0.13.3.

2018-02-13  Kohei Yoshida  <kohei.yoshida@gmail.com>  [66bbbd42f5d135b7e7dd57eaa7fdf6fd69c664df]

	xls-xml: Import hidden row and column flags.

	(cherry picked from commit 95420c1a1e8c082bb5953b2a49f0d56eef0e5f7e)

2018-02-08  Kohei Yoshida  <kohei.yoshida@gmail.com>  [0798d81a4c771b69b4b8eade396c88ffb5416b04]

	xlsx: Remove carriage returns from multi-line strings.

	Let's try to consistently only use linefeed characters for multi-
	line strings.

	(cherry picked from commit 0412bd269983825e5019a8a12267b54f51117aba)

2018-02-08  Kohei Yoshida  <kohei.yoshida@gmail.com>  [0a4e8c44fc8229818191c6b9b46e4de079d0ca3b]

	xls-xml: Pick up border colors.

	(cherry picked from commit e065d26dabafea465ec49e7d79775e62014ac0db)

2018-02-07  Kohei Yoshida  <kohei.yoshida@gmail.com>  [9662fce62ce77f87a4a8ba61f4507ec08e705b57]

	xlsx: Let's not forget to apply color for diagonal borders too.

	(cherry picked from commit c392ea15000b331bb6580b09c1045fd14b449b46)

2018-01-31  Kohei Yoshida  <kohei.yoshida@gmail.com>  [473526e1ca3a7117e2daf977e1b82a0a3977fc84]

	We are supposed to use the foreground color for solid fill.

	(cherry picked from commit f821995022df8dd1e580dd22cf131584b2b1ac4f)

2018-01-31  Kohei Yoshida  <kohei.yoshida@gmail.com>  [98d2b3377da71b713a37f9004acff3c02c22ce2b]

	Alpha value of 0 means fully transparent. I'm sure 255 was intended.

	(cherry picked from commit f7953a814d6a43205791b6cc01c528ef5d4b1ce3)

2018-01-26  Kohei Yoshida  <kohei.yoshida@gmail.com>  [5aba1df254cf4e052ad013d4b8ac886e274b74fa]

	Revert "fix automake warning"

	This reverts commit e4e1e3eb41755a4520a22b904a638da0770836f1.

	This fixes the breakage on 'make distcheck'.


(ryoon)