[V3 Audio] Harden Lavalink boot sequence (#1498)

* Do a bit of hardening

* Loop not asyncio

* Don't use new asyncio coolness

* I hate you all

* Muck up everything

* Fix version comparisons

redbot/core/__init__.py

@@ -1,11 +1,37 @@
-import pkg_resources
-
 from .config import Config
 from .context import RedContext
 
 __all__ = ["Config", "RedContext", "__version__"]
 
-try:
-    __version__ = pkg_resources.get_distribution("Red-DiscordBot").version
-except pkg_resources.DistributionNotFound:
-    __version__ = "3.0.0"
+
+class VersionInfo:
+    def __init__(self, major, minor, micro, releaselevel, serial):
+        self._levels = ['alpha', 'beta', 'final']
+        self.major = major
+        self.minor = minor
+        self.micro = micro
+
+        if releaselevel not in self._levels:
+            raise TypeError("'releaselevel' must be one of: {}".format(
+                ', '.join(self._levels)
+            ))
+
+        self.releaselevel = releaselevel
+        self.serial = serial
+
+    def __lt__(self, other):
+        my_index = self._levels.index(self.releaselevel)
+        other_index = self._levels.index(other.releaselevel)
+        return (self.major, self.minor, self.micro, my_index, self.serial) < \
+               (other.major, other.minor, other.micro, other_index, other.serial)
+
+    def __repr__(self):
+        return "VersionInfo(major={}, minor={}, micro={}, releaselevel={}, serial={})".format(
+            self.major, self.minor, self.micro, self.releaselevel, self.serial
+        )
+
+    def to_json(self):
+        return [self.major, self.minor, self.micro, self.releaselevel, self.serial]
+
+__version__ = "3.0.0b11"
+version_info = VersionInfo(3, 0, 0, 'beta', 11)