Version 2.1.0 Release Candidate 5

Changes since 2.1.0RC4:

Usability: make envelope use full precision for file changestamps
Security: fix check_to_escape to check the middle of the string for quotes

Tested on Fedora 24 and windows 7

Version 2.1.0 Release Candidate 4

Changes since 2.1.0RC3:

Reliability: Make .html files not cache
Usability: envelope gs-folder design
Usability: file manager cmd-z clears page
Usability: fixed ace search dialog buttons
Usability: fix listing permission checks
Usability: error when someone tries to connect with https when you are listening on http