reload wheels when eventpath is missing
Backported:

Performance improvement for locking.
Support for boolean attributes.
Ability to remove media/type attributes when using styleSheetLinkTag and JavaScriptIncludeTag.
Setting to convert, for example, dataDomCache or data_dom_cache (default) argument names to data-dom-cache attribute names.
Corrected which components can have methods injected.
New "aroundRight" option on "labelPlacement" argument that places label text to the right of the form input #258
test wheels installed on subfolder
not testing on subfolder by default
temporary skip subfolder test on external server
restore sub folder test on external server
Updated change log.
reduce testing timeout via smaller file for remote server
disable testing subfolder on remote to reduce test time
Docs.
Made application start-up thread safe.
Made application start-up thread safe.
Made application start-up thread safe.
Made application start-up thread safe.
Made application start-up thread safe.
Travis test paralel request on startup
Travis to use separate browser to launch parallel requests
Travis to use separate browser to launch parallel requests