Enhance lolicri.es by adding grannycri.es

Lolis are not the sole to have a cri, older anime women may have some
too. This is a new path for lolicri.es!
Differenciate the loli/granny types in the rss stream
new granny: Misato Katsuragi from Evangelion

Both the cry and the picture come from episode 2 at around 13:08.
new granny: Haruka Shitow from RahXephon.

Cry from episode 4 (around 4:22), and picture from episode 8 (around
21:45).
granny: remove redundant tilda in Misato's cry
Fix a grammar error in a comment
Add a search index generator

Generated index is stored in JSON format in www/search-index.json
gitignore: add generated JSON search index file
Add a search feature
Add a clean rule to remove the generated search index
Fix link on single loli page
search: Search -> Stalk.

Thanks to Amak ;)