adding precompilation boilerplate to some of the external libs
improvements to fleet and ghttp libs
add json_{inc,dec}ref to jansson.xtm
fix json memory leaks in fleet lib
slight improvement to comint-prompt-regexp
add missing print function to fleet.xtm
tweak Extempore REPL prompt in Emacs
more fleet.xtm refactoring
make string_cat a macro (for xtlang Strings)
remove (outdated) jansson example
add call-xtlang alias for xtmX macro
support building TAGS on Linux
Check find type instead of OS type
Merge pull request #148 from alesguzik/make-tags-linux

Fix make-tags.sh for Linux
Merge branch 'some_external_lib_precompilation_boilerplate' of https://github.com/shulmang/extempore

* 'some_external_lib_precompilation_boilerplate' of https://github.com/shulmang/extempore:
  adding precompilation boilerplate to some of the external libs