doc: improve links in lib/core
Merge pull request #32 from ShockkPony/master

scripts/tell: add option to send tells as notice, disallow tells to self
scripts/tell: refactor
config: reword use_notice help for consistency
scripts/choose: refactor (playing some golf)
modules/buffer: coerce max_size to integer
scripts/flist: fix percentage match output
scripts/choose: fix regex to only match whole line
scripts/choose: fix regex to really only match whole line
scripts/battle: fix restart, fix heal argc