switch LVcomponents struct to fixed-size FX array and rename to LRcomponents

 -avoids unnecessary vector handling
 -also cleanup and improvement of LineRobustStatsTest
 -refs #714
change LRstat computation to new notation and API

 - new function XLALComputeLRstat() using notation
   of Eq. (36) from PRD 89, 064023 (2014)
 - extra XLALCreateLRstatSetup() for parameter conversion
   and for precomputing logs
 - now allows oLGX=NULL, interpreted as 1/Ndet for all X
 - deprecated old functions XLALComputeLineVeto() and XLALComputeLineVetoArray()
 - use new one as reference in LineRobustStatsTest,
   comparison to old with correction term log(oLG)
 - also provide helper functions for oLGX user arguments:
   XLALParseLinePriors()
   XLALParseStringValueToREAL4()
 - refs #714
switch synthesizeLVStats over to new LRstat API and notation

 -user variables now: --computeLRS, --Fstar0, --oLGX
 -extended test script
 -refs #714
increase synth params output precision and fix widths

 -refs #714
LineRobustStats: various minor 'cleanup'

- adjusted code to *exactly* agree with documentation [C,CX],
- rechecked all algebra against paper expressions
- moved XLALParseStringValueToREAL4() into ConfigFile module
- minor streamlining in XLALCreateLRstatSetup()
- added myself to authorlist
- returned coding style to GNU and (mostly) C99 comments
- refs #714
LineRobustStats: moved useLogCorrection switch into 'setup'

- slighly more logical
- refs #714
HierarchSearchGCT: adjusted to new LineRobustStatistic API and naming

- now use XLALCreateLRstatSetup() and XLALComputeLRstat()
- renamed all usage of 'LV' into 'LR' or 'LRstat' respectively
- passes (adjusted) test 'testGCT.sh'
- refs #714
LineRobustStats: use new-API functions in CFSv2 and synthesizeLVStats

- rename "LRScomponents" to "LRcomponents" and consistently use 'LR'
  or 'LRstat' to refer to line-robust statistic
- adjusted test scripts
- passes 'make check'
- refs #714
LineRobustStats: more notation evolution

 -shorten user variables in HSGCT, CFSV2, synthLV
 -rename all final storage variables and output-file column labels into log10BSGL
 -consistently use "line-robust stat" or "BSGL"
 -clarification about Fmax in docu of XLALComputeLRstat()
 -refs #714
LineRobustStats: move deprecated library functions into test

 -refs #714
HierarchSearchGCT: change field names sumTwoF->avTwoF

 -these already stored the average, so they should be correctly named
 -refs #1556
SpinTaylorF2 and ChFDWf: Use f_ref
SpinTaylorF2: Disable precession when kappa = -1