add ability to export fs
add missing FileSaver module
report export request errors; log each key; add timestamp to filename
add ability to import fs
add license for FileSaver library
test export/import to ensure fs remains equivalent
Merge branch 'master' into export-import-fs
log import messages only if DEBUG_FS
Merge branch 'master' into export-import-fs
Merge branch 'master' into export-import-fs
Merge branch 'master' into export-import-fs

Conflicts:
	libs/fs.js
	tests/automation.js
	tests/fs/automation.js
Merge pull request #760 from mykmelez/export-import-fs

add ability to export/import fs store