Merge pull request #41 from adhishm/version_0.0_simulateSingleSlipPlane_fixedTimeIncrement_writeAllDefects

SlipPlane::writeAllDefects
Merge pull request #42 from adhishm/version_0.0_simulateSingleSlipPlane_fixedTimeIncrement_removeOldFiles

Version 0.0 simulate single slip plane fixed time increment remove old files
Merge pull request #43 from adhishm/version_0.0_simulateSingleSlipPlane_fixedTimeIncrement

Version 0.0 simulate single slip plane fixed time increment
Merge pull request #44 from adhishm/version_0.0_simulateSingleSlipPlane_virtualDestructors

Version 0.0 simulate single slip plane virtual destructors
Merge branch 'version_0.0_simulateSingleSlipPlane_localInteractions' of github.com:adhishm/dd2d_Matryoshka into version_0.0_simulateSingleSlipPlane_localInteractions
Merge branch 'version_0.0_simulateSingleSlipPlane_localInteractions' of github.com:adhishm/dd2d_Matryoshka into version_0.0_simulateSingleSlipPlane_localInteractions
Added missing iterator increment.
The increment of the iterator was missing causing the program to enter
into an infinite loop.
In dislocation annihilation, sign error solved.
There was an error in the sign where the program verified that the two
dislocations have opposite Burgers vectors before proceeding with the
annihilation. This has been corrected.