Add Larry's World's Longest Melody

Added .fth suffixes
Added PDF
Converted tabs to spaces.

Update build.md

Describe use of ~/Music folder
Add amiga folder.
Add test steps to make sure the release can be run.

Update build.md

version bump to 0.5.5

Merge pull request #123 from philburk/v053

Version 0.5.3

Merge pull request #122 from philburk/timeadv

time: reduce time-advance

Merge pull request #117 from philburk/version052

add version to title bar of terminal window

Merge pull request #110 from philburk/bendscore

Support just intonation in score entry

added XFORMS example to README

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