Docs updated for moving I2C temperature processing into scheduled task.

User Manual updated, along with Visio doc and resultant .wmf files
.gitignore - removed refs to .vsd, .wmf, and .jpg so those now tracked
Added .vsd, .wmf, and .jpg files to repository
Incremental commit to create I2C task

Update readme.txt to include *.vsd, *.wmf, *.jpg, contents in .zip archive
srtxuser.inc - change task 3 from 5 sec to 2 sec (so might fail faster)
  also remove IF AD_COMPLETE_TASK == SCHEDULE_TASK (etc.) options
strc.asm - disable interrupts in trace, though apparently insufficient (see below)
susr.asm - do NOT call smTrace while in an interrupt (see above)
srtx.asm, sisd.asm - remove IF AD_COMPLETE_TASK == SCHEDULE_TASK (etc.) options
sisd.asm - save and restore BSR on interrupt
2nd incremental commit for I2C task, remove *.map

sisd.asm, susr.asm, susr.inc
  rename SUSR_TaskI2C to SUSR_ISR_I2C
susr.asm - remove SUSR_UdataSec
strc.inc - Added STRC_ISR_BEG_I2C and STRC_ISR_END_I2C

.gitignore - add *.map as this file has more diffs than others combined
readme.txt - remove *.map from initial population and .zip contents
git rm -f *.map to not commit anymore
removed *.map from MPLAB IDE project
Final incremental to move I2C temperature to scheduled task

*.lkr - removed SUSR_UdataSec
srtx.asm - SRTX_Dispatcher can invoke SUSR_TaskI2C.
susr.asm - SUSR_TaskI2C invokes UI2C_MsgTC74ProcessData.
  changed all smTrace to smTraceL
ui2c.inc - Add UI2C_MsgTC74ProcessData.
ui2c.asm - UI2C_Tbl_MsgState goes to UI2C_MsgTC74Complete not UI2C_MsgTC74ProcessData.
  new UI2C_MsgTC74Complete copies msg data and incrs SRTX_Sched_Cnt_TaskI2C.
sisd.asm - cosmetic.