Merge pull request #211 from FenixXx/release-1.10

[XLRSTATS] Fixed issue #151 + minor change in bots identification
[CORE] remove duplicated code in the config module
[CONFIG] make sure to return empty string instead of None in ConfigParser.get method to avoid possible string replacements failures
[IOURT41] minor syntax changes + added missing return statement in pluginStarted()
[IOURT41] added new event: EVT_SENTRY_KILL
Merge pull request #213 from FenixXx/release-1.10

[URT] add event EVT_SENTRY_KILL
[IOURT42] added FreezeTag events
[IOURT42] set client.state to b3.STATE_ALIVE on Client Spawn
[TESTS] added tests for the new Freeze Tag events
Merge pull request #214 from FenixXx/release-1.10

[IOURT42] updated parser for version 4.2.019
[IOURT42] added missing Freeze Tag gametype declaration (10) in defineGametype()
[CMDMANAGER] implement !cmdgrant and !cmdrevoke: manage command priviledges per client
This implements #215
[TESTS] added test cases for !cmdgrant and !cmdrevoke
[CMDMANAGER] added command !cmduse + improved !cmdgrant and !cmdrevoke
Merge pull request #217 from FenixXx/release-1.10

[CMDMANAGER] implemented !cmdgrant and !cmdrevoke
[CORE] remove useless error message

fix #218
Merge branch release-1.10 into new-configuration