m_ojoin Remove pointless FindChan() call

Found by Coverity, CID: 1135649
Ignore NULL callbacks in ModuleManager::Reload()

Found by Coverity, CID: 1201453
m_auditorium Handle NULL return from Channel::GetUser() in OnSendWhoLine()

Found by Coverity, CID: 1135647
Allow uppercase letters in IPv6 CIDR masks
m_ssl_openssl Avoid Applink on Windows by calling PEM_read_bio_DHparams() instead of PEM_read_DHparams()
Change Windows libraries to be dynamically linked
Compress the Windows installer with zlib to reduce AV false positives
Backport questions from master's genssl tool.
Fix undefined symbol error on module load if compiled with Clang 3.4

Fixes issue #803 reported by @SaberUK
Merge pull request #832 from SaberUK/insp20+fix-ssl-question

Backport questions from master's genssl tool.
m_spanningtree Set the bursting flag in the FJOIN handler based on whether the source of the FJOIN is bursting or not

Previously the flag was true if our route to the source was bursting, which resulted in m_joinflood incorrectly registering netjoins when a remote server was bursting

Fixes issue #839 reported by @joshtek0
m_spanningtree Advertise the availability of m_globops in CAPAB CAPABILITIES
m_cgiirc Call User::InvalidateCache() after changing host and dhost in OnCheckReady()
Do not export callers

Their functions are all inlined and Windows gives unresolved symbol errors
Fix m_permchannels and m_xline_db on Windows

The call to remove() can fail if the database doesn't already exist. Just
ignore the error, which effectively makes the rename() call below work as
it does on nix
Update year in resource file for Windows
Replace deprecated entry in launchd config with the modern equivalent.
Merge pull request #854 from SaberUK/insp20+deprecated-plist-entry

Replace deprecated entry in launchd config with the modern equivalent.
Update server.cpp

Rewrote "invalid credentials" error message to remove confusion regarding "server snomask", which some users interpreted as "I must make sure the snomask on each server is identical" (which makes no sense), when really the intention is basically "look at the logs on the other server".
m_spanningtree Fix cleanup of connections when unloading a module that provides an IOHook