Removing double slash from $uri, not the solution of permission issue but it won't hurt.
getStationUrl will always return a slash at the end, so we do not need to add it again in line 1033
This removes most of the legacy upstream config madness by not using
weird config files spread all over the place.
This isn't the solution to other config reading fragility issues, but
it does move the whole config back to the central airtime.conf file.
I cleaned up the CORSHandler code a bit more and also rewrote the
helper to use the framework to access the request properly and
took care of also grabbing the request schema from the server.
I fixed the manual installer to ensure that the VERSION file ends up
in the right directory on install.
I also took care of the pre-release parts of the naggingness. It shows
no updates as long there is no stable release for the current version.
As soon as one is available it uses the orange update icon to alert the
user that an update would be in order since a stable version has been
released.
Problem: assert() is Language construct in php 7 and not a function anymore. It also seems to behave silghtly differently with regards to what kind of side effects assertions are allowed to have. This leads to all of the rest endpoints being broken in php 7 since the assertion silently fails and the routes never really get added to the front controllers router.
Solution: Don't wrap the addRouter call in assert(). The way assert was being uses was rather unusual for php code this age. It was also mostly checking zf1 rather than guarding against errors in LibreTime itself.
The php manual clearly states "As a rule of thumb your code should always be able to work correctly if assertion checking is not activated." giving even more reason to ot wrap critical paths in assertions.
There are some other instances of `assert()` being used in non test code, those don't seem to have any negative effects on php7.
