Fix undefined symbol: clock_gettime

[SM] Extension dbi.mysql.ext.so failed to load: /home/csgo/csgo/addons/sourcemod/extensions/dbi.mysql.ext.so: undefined symbol: clock_gettime
Merge pull request #162 from alliedmodders/steam3-bans

Allow Steam IDs in Steam3 format for sm_addban (r=asherkin).
Merge pull request #164 from VoiDeD/sp-commandline

Expose ICommandLine to plugins.
Merge pull request #156 from Bara20/patch-2

Fix undefined symbol: clock_gettime.
Fix build.
Update Fistful of Frags gamedata.
Merge remote-tracking branch 'alliedmodders/master'