%lcaSetSeverityWarnLevel
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%  Calling Sequence
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%lcaSetSeverityWarnLevel(newlevel)
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%  Description
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%   Set the warning threshold for lcaGet() operations. A warning message is
%   printed when retrieving a PV with a severity bigger or equal to the
%   warning level. Supported values are 0..3 (No alarm, minor alarm, major
%   alarm, invalid alarm). The initial/default value is 3.
%
%   If a value $>=10$ is passed, the threshold for refusing to read the
%   .VAL field of PVs with an INVALID severity can be changed. The
%   rejection can be switched off completely by passing 14 ( $= 10 +
%   INVALID\_ALARM + 1$ ) or made more sensitive by passing a value of less
%   than 13 ( $=10 + INVALID\_ALARM$ ), the default.
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%    till 2018-02-28
