~gbmor/clinte

trimming whitespace
both when posting new item and when displaying items.
prevents posts from messing up the display of other
posts with extraneous whitespace.
left out install step for cargo-tarpaulin causing build failure
removed extraneous newline on post display
leave db intact on uninstall
updated deps + added release profile to Cargo.toml
using cargo tarpaulin instead of grcov
letting errors flow up
using rfc3339 for temp file name
removing temp file
now opens $EDITOR to write post body
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