fixes 1015187 - Write files from uploads with 0644 permission
fixes bug 1017236 - Test coverage for Symbols home page with uploads
Merge pull request #2063 from peterbe/bug-1015187-add-file_upload_permissions-setting-to-config

fixes 1015187 - Write files from uploads with 0644 permission
fix bug 1018484 - mktime cannot use a date this far in the future on 32-bit systems such as our vagrant VM
Merge pull request #2071 from rhelmer/bug1018484-32-bit-mktime-fail

fix bug 1018484 - mktime cannot use a date this far in the future on 32-...
(no bug) improve vagrant install flow
Merge pull request #2069 from rhelmer/no-bug-vagrant-install-doc-fixes

(no bug) fix install docs
Merge pull request #2066 from peterbe/bug-1017236-test-coverage-for-symbols-home-page-with-uploads

fixes bug 1017236 - Test coverage for Symbols home page with uploads