Merge pull request #1 from mhkuu/patch-1

Update README.md
build properties
first addition of diacritics
added last diacritics
revert idea and dist changes
reverting again
removing idea libraries
reverting frameworks
merged Martijn's changes
changed Amsterdam priority
Merge branch 'mhkuu-master'
Merge branches 'combobox' and 'master' of https://github.com/odaata/HisTEI into combobox
added single letter icon