Scala tags generator
Fix an issue where Nailgun integration wasn't working due to how "current working directory" works with Nailgun.
Fixes an issue with tags generated for symbols which are regex symbols (ie *).
Thanks @drxcc .
Fixed an issue where tags were not generated for macros.
#7: Changes the form of the address. Instead of using call cursor (which is brittle when the file changes), it uses /search/ along with \zs to place the cursor in the correct place.
#8: All implicit things are now added as static (when clashing, priority is given to the non-implicit tag). Implicit things (val, def, class and object) are rarely accessed via their tokens (using <C-]>) since they are often simply proofs for typeclasses and the like.