.gitignore
* Added GeomVerify executable to the ignore list.

VocabLib/src/DirectIndex.cpp
* Saving/loading level attribute.

VocabLib/tests/DirectIndex_test.cpp
* Testing original index against the loaded one rather than against
static values.

GeomVerify/GeomVerify.cpp
* Deleted regex for validating name of descriptors file.
* In function matchKeypoints, changed signature and argument variables
names.
* In function matchKeypoints, saving query descriptors to a different
direct index object.
* Overall re-factor where variable names where changed, variables where
cleared/initialized correctly, and some variables declaration was
factored out of the cycles.
* Projective transformation result was saved onto an image.
* Filling non re-ranked candidates in list of geometric verified
candidates without using copy funciton since it was causing segfault.
* In function matchKeypoints, using second direct index recieved as
parameter, refactor due to variable name changes, asserting direct index
feature indices, filtering putative matche by a proximity threshold.
* Cleaning unused code.