escape TC message attrib for common selenium msg
escape TC message attrib for common selenium msg

turns:
[10:24:50][testing a failure] ##teamcity[testFailed name='testing a
failure' message='can't find element #cantfindme']
[10:24:50][testing a failure] Property value not found Valid property
list format is (name( )*=( )*'escaped_value'( )*)* where escape symbol
is "|"

into valid test/build failure msg:
[10:31:41][testing a failure] can't find element #cantfindme

lefthandedgoat/canopy,soerennielsen/canopy,JeremyBellows/canopy,skalinets/canopy,lefthandedgoat/canopy,velyo/canopy,blair55/canopy,blair55/canopy,JeremyBellows/canopy,lefthandedgoat/canopy,soerennielsen/canopy,JeremyBellows/canopy,JeremyBellows/canopy,skalinets/canopy,pedro-ramirez-suarez/canopy,bfrierson/canopy,skalinets/canopy,pedro-ramirez-suarez/canopy,GaryGwynn/canopy,skalinets/canopy,soerennielsen/canopy,velyo/canopy,GaryGwynn/canopy,blair55/canopy,skalinets/canopy,JeremyBellows/canopy,bfrierson/canopy,soerennielsen/canopy,somnuk-wk/canopy,lefthandedgoat/canopy,blair55/canopy,lefthandedgoat/canopy,somnuk-wk/canopy