fix #375: application path resolution

change the way application index is built:
only .app files contained within ebin/ and src/ directories
are now used to determine application path - it allows not
to treat application patches as applications.
Merge pull request #377 from deadok22/375

fix #375: application path resolution
get rid of reference search in stub generation
fixed #379
fixed #365
rebuild with Grammar-Kit 1.1.5;
get rid of custom GPUB;
since version 133.79
cleanup
rebuild with Grammar-Kit 1.1.5 again;
since version 133.124
suppress default debug action for rebar run configurations
Merge pull request #380 from deadok22/master

suppress default debug action for rebar run configurations
v0.5.3
better logging
notnull