Remove Travis CI, add Librapay badge

Refactor install script

Cache package lookups

Update TeXlive and build all versions

Version bump for compatibility with memoir 3.8

Environment fullwidthtabular

Implemented using xtab.sty
Might be necessary to provide proper definitions for proper multi-page tables

Move workaround to font loading

Require hyphenation pattern packages

Reduce verbosity

Versioning has to start somewhere