fixed bug that caused uploaded shared mesh keychains to set the incorrect value in the commotion profile. This caused olsrd to crash.
made it so that the encryption value is not removed upon deletion and instead is set to none so that when network restarts commotiond will not fill in the value.
Merge pull request #147 from opentechinstitute/smk_upload

Fixed shared mesh keychain upload.

tested by areynold
updated validation functions; changed help text
Merge pull request #157 from opentechinstitute/commotion-lua-helpers-pull-3

Branch tested and ready for merging.
Merge pull request #154 from opentechinstitute/issue_142

Fixes bug where mesh settings GUI did not disable encryption when requested.

tested by areynold
Merge branch 'master' into issue_150