New Austin Synxis Link

Replaced all (32 instances I think) previous links with new one per
Adam Hawthorne.
Update hana's booking link in Hana's PHP file
Added "/" to slider URLs

3 on /hana, 1 on /austin slideshows
Replaced synxis links with phgsecure links for everything.

OLD HANA
https://gc.synxis.com/rez.aspx?Hotel=26987&Chain=10237&template=HNMHM&sh
ell=HNMHM2&adult=2

NEW HANA
https://www.phgsecure.com/IBE/bookingRedirect.ashx?propertyCode=HNMHM&nu
mberOfAdults=2

OLD AUSTIN
https://gc.synxis.com/rez.aspx?tps=fml&adult=1&step=1&hotel=28064&shell=
fAUSTC&chain=10237&template=fAUSTC&avcurrency=USD

NEW AUSTIN
https://www.phgsecure.com/IBE/bookingRedirect.ashx?propertyCode=AUSTC
Calendar Update

Removed December, added link to February html file.
Merge branch 'dev'