exphi 1.0.0 released.

001) Changed Armed bo record state names from Disarmed/Armed to Disarm/Arm to
     be consistent with Shutter bo record state names.

002) Removed "ENABLE PLC <PLC_NUM>" from exphi.pmc so that PLC program is not
     enabled by default.

exphi 1.0.1 released.

003) Made minor formatting changes to src/exphi.pmc.template.

004) Added TMOT macro to src/exphi.db for specifying the timeout for asyn read
     and write operations.

exphi 1.1.0 released.

005) Added support for a maximum exposure time which can be used to prevent
     unintended extended exposures in the case of a Phi motion error or as a
     means to open the exposure shutter for a fixed amount of time with
     real-time timing accuracy.

exphi 1.2.0 released.

006) Fixed bug in PLC program which caused the max exposure time timer to be
     reset and the exposure shutter to be reopened after being closed once the
     max exposure time was reached.

exphi 1.2.1 released.

007) Added support for exposure trigger synchronization with Phi.

008) Changed PLC program to not arm if Phi position would immediately cause
     the exposure shutter to be opened or the exposure trigger to be started.

exphi 1.3.0 released.

009) Added support for disabling exposure trigger synchronization with Phi.

exphi 1.4.0 released.
