Add Polish kreska forms

Kreska is similar to acute accent, but looks nearly vertical.
Improve forms of Cyrillic Ж, ж, Ф and ф.

- Update version numbers and copyright.
Improvements to hellenic letters across the board. New lowercase lambda.
Fixed the lowercase theta regression introduced in 1.18.
Merge branch 'zhe_ef'
Merge branch 'hellenic'

Fix bold italic U+2105
Delete mistakenly added bold italic U+2106

Conflicts:
	Inconsolata-LGC.sfd
Added Romanian comma accent forms

Added Romanian comma accents, namely U+0218 to U+021B
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